10PCS Cylinder Head Bolt 3920780 Fits for Cummins Engine 4B 6B 6B5.9 6BTA5.9-G3 4B3.9 B5.9-C177
10PCS Cylinder Head Bolt 3920780 Fits for Cummins Engine 4B 6B 6B5.9 6BTA5.9-G3 4B3.9 B5.9-C177 is backordered and will ship as soon as it is back in stock.
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Description
Description
Cylinder Head Bolt 3920780 – Premium Replacement for Cummins Engines and Compatible Equipment
High-performance aftermarket cylinder head bolts engineered for reliable engine assembly integrity in Cummins B-series diesel engines and a wide range of CASE, New Holland, and Dodge applications. Precision-manufactured for drop-in compatibility and consistent clamping performance in demanding agricultural, construction, and on-highway environments.
Technical Specifications
Fits Part Numbers: M3920780, SCR9341, 3901220, 3903939, 3918472, 3920780, J920780, J903939
Condition: New, aftermarket replacement
Function: Cylinder head bolt for engine head gasket sealing and structural integrity
Verified Equipment Compatibility
Fits Cummins Engines:
- 4B, 4B3.9, 3.9L
- 6B, 6B5.9, 5.9L, 6.7L
- 6BTA5.9-G3, B5.9-C177, ISB
Fits Dodge Pickup Trucks:
- 2500, 3500
Fits CASE Tractor Loaders (selected models):
- 550, 580E, 580K, 580SE, 621, 650, 650G, 650H, 650K, 680L, 688
- 750H, 750K, 780C, 780D, 850D, 850E, 850G, 850H, 850K, 855D, 855E, 880D
- 888, 1085B, 1085C, 1086B, 1088, 1150E, 1150G, 1150H, 1155E
- 1620, 1640, 1644, 1800, 1822, 1840, 1844, 1845C, 1896
- 2022, 2044, 2096, 2144, 2344, 3150, 3185, 3210
- 4390, 4390T, 4391, 4391T, 4391TA, 5120, 5130, 5140, 5150
- 5220, 5230, 5240, 5250, 6000, 6500, 6590, 6590T, 6590TA, 6591T, 6591TA
- 8820, 8825, 8825HP, 8830, 8840, 8850, 8860, 8860HP, 8870, 8880, 8880HP
- 40XT, 60XT, 70XT, 75XT, 85XT, 90XT, 95XT
- 450C, 455C, 480E, 480E LL, 550E, 550G
- MX100, MX110, MX120, MX135, MX150, MX170
- RP65, RP85, RP110, RP135, RP165, RPZ65, RPZ85, RPZ125, RPZ145
- SPX3150, SPX3185, SPX3200, SPX3200B, SPX3310
- W11B, W14B, W14C
Fits New Holland Tractor Loaders:
- U80, LV80
Why Choose This Cylinder Head Bolt Set
The cylinder head bolts are critical fasteners in your engine assembly, clamping the head gasket between the cylinder head and engine block to maintain combustion pressure and coolant sealing. Worn, stretched, or damaged head bolts can lead to head gasket failure and costly engine damage. This replacement set delivers:
- Reliable clamping force – Correct torque specifications for proper head gasket sealing and combustion integrity
- Exact-fit installation – Direct replacement with correct thread pitch, length, and grade specifications for Cummins B-series engines
- Durable construction – Built to withstand continuous thermal cycling and high combustion pressures in heavy-duty diesel engine environments
- Cost-effective solution – Premium aftermarket quality at a fraction of dealer pricing
Package Contents
10 × Cylinder Head Bolt (3920780)
Essential for engine rebuild, head gasket replacement, and major engine service. Keep your Cummins 4B, 6B, and ISB engines properly assembled and sealed for reliable performance across every application.
1 Year Warranty
1 Year Warranty
Fab Heavy Parts is excited to offer a 12-month warranty on all new replacement/aftermarket parts starting from your original purchase date.
Enjoy peace of mind with Fab Heavy Parts!
For more warranty details, please check out our warranty policy.
Fast Delivery
Fast Delivery
Estimated delivery time 3-6 workdays
No Core Charge
No Core Charge
We don't have a core charge for any products.
Frequently Asked Questions
What will shipping cost?
Shipping is calculated in your cart. Enter your province and postal code to see the available rate before checkout.
When will my order arrive?
Processing normally takes 1–2 business days. Estimated delivery to Canada is 4–7 workdays after dispatch. For parts weighing over 68 kg, delivery may take 5–10 workdays. Carrier or customs delays may add time.
Will I pay Canadian duties or GST?
Yes. Prices do not include Canadian import duties, GST/HST, or customs-clearance fees. If charges apply, the carrier or Canadian customs will contact you for payment before delivery.
Customs duty: Auto parts imported from China commonly have duty rates of approximately 6%–8.5% of the CIF value (cost, insurance, and freight), depending on the product’s HS code. Canada and China do not have a free trade agreement.
GST/HST: A 5% federal GST generally applies to commercial imports. Depending on the destination province, a combined HST rate of approximately 13%–15% may apply instead.
These rates are estimates. The final amount is determined by Canadian customs based on the product classification, declared value, origin, and destination.
Can I return my order?
Eligible unused parts may be returned within 60 days of delivery. Items must be uninstalled, clean, undamaged, and in their original packaging. To start a return, please begin from our return portal before sending anything back.
Are prices shown in Canadian dollars?
Yes. For orders shipping to Canada, all product prices and checkout amounts are shown in Canadian dollars, and you can pay in CAD.
Do you offer B2B accounts?
Yes. We welcome B2B customers and can invite your team members to our B2B portal, where your business can manage purchasing and place orders with us. Contact us to get started.
How can I pay?
Checkout accepts Visa, Mastercard, PayPal, Shop Pay, Apple Pay, and Google Pay. Available options are shown securely at checkout.
