Hex Flange Head Capscrews

Genuine Hex Flange Head Capscrews for Onan, Cummins & Fleetguard Engines

Discover our premium collection of Hex Flange Head Capscrews, engineered specifically for power engines by Onan, Cummins, and Fleetguard. These genuine replacement parts are designed to provide a secure fit and superior clamping force, essential for maintaining engine integrity under demanding conditions.

Hex Flange Head Capscrews – Durable, Reliable, Genuine Diesel Engine Parts

Our Hex Flange Head Capscrews feature integrated flanges that distribute load evenly, reducing the need for washers and enhancing stability. Crafted from high-grade materials, these capscrews resist corrosion and wear, ensuring long-lasting performance in diesel engine assemblies.

  • Precision Fit: Engineered to meet exact specifications for Onan, Cummins, and Fleetguard power engines.
  • Enhanced Durability: Manufactured with premium alloys for superior strength and corrosion resistance.
  • Optimized Performance: Flange head design provides reliable clamping force and prevents loosening under vibration.

Maintain your diesel engine’s reliability with our genuine Hex Flange Head Capscrews—trusted by professionals and designed for performance.

Why Choose Our Hex Flange Head Capscrews?

Choose our genuine Hex Flange Head Capscrews for unmatched quality, expert support, and guaranteed compatibility with Onan, Cummins, and Fleetguard diesel engines.

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  • CUMMINS 3642612 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3642612 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $503.85
    $460.27
    Reliability forged by Cummins engineering excellence Precision-machined hex flange head for secure, vibration-resistant fastening Durable corrosion-resistant finish extends service life in demanding...
    $503.85
    $460.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $503.85
    $460.27
    Subtotal:
  • CUMMINS 3641835 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3641835 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $592.76
    $541.49
    Engineered for peak precision and durability Ensures secure fastening under demanding conditions Original Equipment Manufacturer (OEM) guaranteed by Cummins CUMMINS 3641835 HEX FLANGE HEAD CAPSCREW...
    $592.76
    $541.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $592.76
    $541.49
    Subtotal:
  • CUMMINS 3641729 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3641729 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $1,456.53
    $1,330.54
    Engineered to empower your powertrain’s backbone Precision-machined flange head for superior grip and torque resistance Corrosion-resistant finish to withstand harsh operating environments Genuine...
    $1,456.53
    $1,330.54
    Add to Cart
    Qty in Cart: 0
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    Price:
    $1,456.53
    $1,330.54
    Subtotal:
  • CUMMINS 3641728 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3641728 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $1,175.09
    $1,073.45
    Precision fastening engineered for long-lasting reliability Robust flange design enhances clamp load distribution Original Equipment Manufacturer (OEM) quality guaranteed from Cummins CUMMINS...
    $1,175.09
    $1,073.45
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $1,175.09
    $1,073.45
    Subtotal:
  • CUMMINS 3641716 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3641716 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $21.42
    $19.56
    Precision engineered for seamless integration with Cummins engines. Enhanced durability to withstand demanding operational environments. Genuine OEM part manufactured by Cummins to guarantee peak...
    $21.42
    $19.56
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $21.42
    $19.56
    Subtotal:
  • CUMMINS 3641250 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3641250 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $19.76
    $18.05
    Experience Unmatched Reliability with Every Turn Precision-engineered hex flange head for secure fastening under high vibration Corrosion-resistant coating contributes to extended service life in...
    $19.76
    $18.05
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $19.76
    $18.05
    Subtotal:
  • CUMMINS 3639283 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3639283 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $27.42
    $25.05
    Engineered for precision fastening in demanding power systems Designed to withstand high stress and thermal cycling for extended durability Certified genuine OEM Cummins product guaranteeing exact...
    $27.42
    $25.05
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $27.42
    $25.05
    Subtotal:
  • CUMMINS 3635882 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3635882 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $136.02
    $124.25
    Engineered for unwavering reliability and seamless integration. Precision-machined hex flange head design ensures optimal fastening strength. Durable material composition resists wear and vibration...
    $136.02
    $124.25
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $136.02
    $124.25
    Subtotal:
  • CUMMINS 3606618 - HEX FLANGE HEAD CAPSCREW - Original OEM part
    Add to Cart

    CUMMINS 3606618 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $69.78
    $63.75
    Engineered precision for uncompromising power and reliability Exceptional corrosion resistance and strength designed to endure demanding conditions Critical component engineered by Cummins for...
    $69.78
    $63.75
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $69.78
    $63.75
    Subtotal:
  • CUMMINS 3596812 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3596812 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $6.22
    $5.68
    Engineered for Excellence and Endurance Precision-machined to Ensure Secure Fitment and Maximum Torque High-strength flange head design for superior vibration resistance 100% Genuine OEM Cummins...
    $6.22
    $5.68
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $6.22
    $5.68
    Subtotal:
  • CUMMINS 3527184 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3527184 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $5.96
    $5.45
    Precision engineered for robust fastening under demanding engine conditions Designed to maintain optimal clamping force and resist vibration loosening Certified genuine Cummins OEM part assuring...
    $5.96
    $5.45
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $5.96
    $5.45
    Subtotal:
  • CUMMINS 3412921 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3412921 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $26.98
    $24.65
    Precision engineered fastening for uncompromising power systems Robust flange head design ensures optimal clamping force and vibration resistance Durable construction to withstand harsh operating...
    $26.98
    $24.65
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.98
    $24.65
    Subtotal:
  • CUMMINS 3400876 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3400876 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $15.00
    $13.71
    Precision engineered fastening for uncompromising power integrity Durable flange design ensures secure, vibration-resistant connections in heavy-duty applications Crafted as a genuine OEM component...
    $15.00
    $13.71
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $15.00
    $13.71
    Subtotal:
  • CUMMINS 3397506 - SCREW HEX FLANGE HEAD CAP - Image 1
    Add to Cart

    CUMMINS 3397506 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $13.88
    $12.68
    Precision-engineered fastening solution for dependable engine assembly Hex flange head design delivers superior torque and vibration resistance Certified OEM Cummins component ensures seamless...
    $13.88
    $12.68
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $13.88
    $12.68
    Subtotal:
  • CUMMINS 3393897 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3393897 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $154.97
    $141.57
    Engineered precision fastening for unmatched reliability under pressure Robust corrosion resistance to endure harsh operating environments Guaranteed genuine OEM part ensuring perfect compatibility...
    $154.97
    $141.57
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $154.97
    $141.57
    Subtotal:
  • CUMMINS 3393717 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3393717 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $77.56
    $70.85
    Precision engineered fastening for uncompromising Cummins power systems Robust hex flange design to enhance vibration resistance and secure fitting Manufactured to exact Cummins OEM specifications...
    $77.56
    $70.85
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $77.56
    $70.85
    Subtotal:
  • CUMMINS 3349510 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3349510 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $20.00
    $18.27
    Precision engineered for enduring strength and secure fastening Crafted from premium materials to withstand extreme operating conditions Genuine OEM Cummins part optimized for full system...
    $20.00
    $18.27
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $20.00
    $18.27
    Subtotal:
  • CUMMINS 3349462 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3349462 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $26.80
    $24.49
    Engineered for Excellence: Precision-crafted to uphold Cummins' stringent quality standards. Robust Construction: Designed to endure demanding engine conditions without compromising integrity...
    $26.80
    $24.49
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.80
    $24.49
    Subtotal:
  • CUMMINS 3349461 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3349461 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $57.57
    $52.59
    Engineered Reliability for Every Critical Connection High-strength flange design for superior load distribution Precision threading to ensure exact fit and secure fastening 100% Genuine Cummins OEM...
    $57.57
    $52.59
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $57.57
    $52.59
    Subtotal:
  • CUMMINS 3332242 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3332242 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $94.50
    $86.33
    Precision Engineered for Enduring Strength and Reliability Specially designed hex flange head enhances fastening security and vibration resistance Manufactured under strict Cummins standards for...
    $94.50
    $86.33
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $94.50
    $86.33
    Subtotal:
  • CUMMINS 3332234 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3332234 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $227.72
    $208.02
    Engineered precision securing strength for unmatched durability High-grade hex flange head design ensures optimal load distribution and resistance to loosening Crafted as an authentic Cummins OEM...
    $227.72
    $208.02
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $227.72
    $208.02
    Subtotal:
  • CUMMINS 3332174 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3332174 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $280.63
    $256.35
    Cummins 3332174 - HEX FLANGE HEAD CAPSCREW MINS3332174 When it comes to finding original replacement parts like the 3332174 - HEX FLANGE HEAD CAPSCREW, our store stands out as the go-to destination...
    $280.63
    $256.35
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $280.63
    $256.35
    Subtotal:
  • CUMMINS 3331597 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
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    CUMMINS 3331597 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $91.02
    $83.14
    Precision-engineered for uncompromising durability and fitment High-strength flange head design ensures secure fastening under extreme conditions Manufactured as an original equipment part to...
    $91.02
    $83.14
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $91.02
    $83.14
    Subtotal:
  • CUMMINS 3331596 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3331596 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $108.40
    $99.03
    Engineered Precision for Unmatched Durability Robust Hex Flange Head Design Ensures Secure Fastening Under Pressure Strictly Genuine OEM Cummins Quality for Optimal Compatibility and...
    $108.40
    $99.03
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $108.40
    $99.03
    Subtotal:
  • CUMMINS 3331579 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3331579 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $99.95
    $91.30
    Precision-engineered fastening for uncompromised engine integrity Durable flange head design providing superior torque retention 100% genuine OEM part directly from Cummins, engineered for seamless...
    $99.95
    $91.30
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $99.95
    $91.30
    Subtotal:
  • CUMMINS 3329550 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3329550 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $137.28
    $125.41
    Authentic strength engineered for uncompromising performance Precision-machined hex flange head for optimal torque and secure fastening Constructed using high-grade materials for superior durability...
    $137.28
    $125.41
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $137.28
    $125.41
    Subtotal:
  • CUMMINS 3286877 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3286877 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $101.18
    $92.43
    Crafted to power perfection – engineered for seamless integration and long-term reliability. High-strength hex flange design ensures uniform load distribution and vibration resistance under...
    $101.18
    $92.43
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $101.18
    $92.43
    Subtotal:
  • CUMMINS 3285067 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3285067 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $91.85
    $83.90
    Precision forged for enduring strength and stability Engineered to maintain optimal torque and resist loosening under extreme conditions Manufactured exclusively by Cummins, assuring seamless...
    $91.85
    $83.90
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $91.85
    $83.90
    Subtotal:
  • CUMMINS 3285066 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3285066 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $27.67
    $25.28
    Performance engineered for lasting power. Designed for superior torque retention and vibration resistance. Manufactured as an original equipment Cummins component for guaranteed compatibility...
    $27.67
    $25.28
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $27.67
    $25.28
    Subtotal:
  • CUMMINS 3284021 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3284021 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $209.80
    $191.66
    Engineered for precision and strength, every turn counts. Exceptional torque retention delivers superior fastening security. Corrosion-resistant finish for enduring service under extreme conditions...
    $209.80
    $191.66
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $209.80
    $191.66
    Subtotal:
  • CUMMINS 3282699 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3282699 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $21.53
    $19.67
    Engineered for ultimate fastening strength and durability under demanding Cummins engine conditions Optimized flange design ensures even load distribution and vibration resistance for extended...
    $21.53
    $19.67
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $21.53
    $19.67
    Subtotal:
  • CUMMINS 3282433 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3282433 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $26.56
    $24.26
    Precision engineered for uncompromising reliability High-strength hex flange design offering superior torque retention Corrosion-resistant coating for enduring engine protection 100% genuine Cummins...
    $26.56
    $24.26
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.56
    $24.26
    Subtotal:
  • CUMMINS 3280899 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3280899 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $8.62
    $7.87
    Precision engineered for reliability and strength Corrosion-resistant finish for extended service life 100% genuine Cummins OEM part, ensuring flawless compatibility Experience the Unmatched...
    $8.62
    $7.87
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $8.62
    $7.87
    Subtotal:
  • CUMMINS 3278480 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3278480 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $18.72
    $17.10
    Precision engineered fastening for uncompromising reliability High-strength hex flange design providing exceptional torque distribution Corrosion-resistant finish extending part lifespan 100%...
    $18.72
    $17.10
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $18.72
    $17.10
    Subtotal:
  • CUMMINS 3177945 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3177945 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $96.40
    $88.07
    Engineered for unmatched durability and seamless performance Superior flange design optimizes load distribution and vibration resistance Precision-manufactured to OEM specifications for complete...
    $96.40
    $88.07
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $96.40
    $88.07
    Subtotal:
  • CUMMINS 3177443 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3177443 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $198.52
    $181.34
    Precision engineered to power your Cummins system with unwavering strength. Robust hex flange design ensures secure fastening under high stress conditions. Corrosion-resistant coating extends part...
    $198.52
    $181.34
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $198.52
    $181.34
    Subtotal:
  • CUMMINS 3176570 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3176570 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $95.00
    $86.79
    Engineered to uphold Cummins' exacting standards of strength and durability Ensures secure fastening to maintain engine integrity under demanding conditions Precision manufactured to provide...
    $95.00
    $86.79
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $95.00
    $86.79
    Subtotal:
  • CUMMINS 3171752 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3171752 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $26.99
    $24.66
    Engineered for durability and precision – delivering uncompromising strength in every application. Designed to optimize fastening integrity – prevents loosening under vibration and thermal cycling...
    $26.99
    $24.66
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $26.99
    $24.66
    Subtotal:
  • CUMMINS 3171724 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3171724 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $18.40
    $16.81
    Precision in every thread, reliability in every fit. Engineered with exceptional tensile strength for secure fastening. Built to withstand extreme vibration and temperature variations. 100% genuine...
    $18.40
    $16.81
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $18.40
    $16.81
    Subtotal:
  • CUMMINS 3171715 - HEX FLANGE HEAD CAPSCREW - Original OEM part - Image 1
    Add to Cart

    CUMMINS 3171715 HEX FLANGE HEAD CAPSCREW Original OEM part

    CUMMINS

    $103.50
    $94.55
    Precision engineered for unmatched durability and reliability. Hex flange head design offers superior grip and torque retention under intense operating conditions. Crafted as an OEM Cummins...
    $103.50
    $94.55
    Add to Cart
    Qty in Cart: 0
    Quantity:
    Price:
    $103.50
    $94.55
    Subtotal:
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