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Cummins 4B Inframe Engine Rebuild Kit, New (IF40894214B)
โ Replace Part Number: IF40894214B
โ Fit for: Cummins 4B engines
โ Built to OEM specs for a proper fit
โ Send us an inquiry for price
Diesel parts can vary between engine builds. If you choose not to provide an ESN or CPL, we may not be able to confirm fitment before an order is shipped. Please check the part number and engine application carefully to help avoid selecting the wrong part.
Hassle-free 30-day return policy for a risk-free shopping experience.
3 Months Warranty
Enjoy 3-month warranty, ensuring long-lasting reliability and peace of mind.
2-7 Days Fast Delivery
Receive your order within 2 to 7 days, ensuring fast and reliable delivery.
24/7 Service
Round-the-clock support to assist you whenever you need it.
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30-Day Money Back
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2-7 Days Fast Delivery
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6 Months Warranty
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24/7 Service
Product Details
Think you know the truth about Aftermarket Rebuild Kits? We’d bet you’d be surprised.
It’s no secret, rebuilding your rig is one of the most labor (and wallet) intensive repairs out there. Sure, you want your engine to last another million miles but you also want the best price; so what should you choose- OEM or Aftermarket?ย
When it comes to engine parts, the aftermarket often gets a bad rep. The idea that aftermarket retailers sell cheap parts with zero warranty, delivered in a beat-up box written in another language couldn’t be further from the truth. 4BTdiesel is here to set the record straight; we only sellย Rebuild Kits with new parts, zero core charges, and a 6-month warranty.ย On top of only offering premium quality parts, we also make sure youย save up to 50% off OEM prices.ย So, when it comes to your rebuild, what?s left to want?ย
Need a little extra proof? Let?s talk Rebuild Kits.
- Get quality you can trust with a brand new rebuild kit that’s beenย manufactured and assembled in an ISO 9001: 2008 certified facility, ensuring proper engine fitment and function.ย ย Since it is brand new, there is no core charge!ย ย Giving you even more coin in your pocket!
- Additionally, the sealing products are proudly made in the USA, using 100% asbestos-free material.ย I think this speaksfor itself!
- These piston pins are hardened and tempered for improved strength and wear resistance. Ever hear of the Little Engine that could?I heard he has these piston pins and he’s racked up another million miles on that bad boy.
- Want durability? You got it! This kit comes withย tri-metal construction rod and main bearings.
- Plus, the pistons within this kit areย CNC turned to precise tolerances, meaning your engine will go a million more miles!
- To top it off,ย correct materialsย are used to ensure gaskets have excellent performance inย functionality and sealability.
- Simply put, trust theย professionally certified factory mechanicsย with a rebuild kitย built to OEM specifications.ย Not only will a rebuild kitย restore your engine to good working condition, it will alsoย extend the life of it.
Kit Contents:
- (1) Oil Pan Gasket
- (1) Lower Thrust Bearing
- (4) 1.0mm Piston Kits
- (8) Piston Pin Retainers
- (4) Piston Pins
- (4) 1.0mm Engine Pistons
- (4) 1.0mm Piston Ring Sets
- (4) Top Piston Rings
- (4) 1.0mm Second Piston Rings
- (4) 1.0mm Oil Rings
- (1) Main Bearing Kit, 3802010
- (4) Top Main Bearings, 3929016
- (5) Bottom Main Bearings, 3929021
- (1) Thrust Bearing, 3926723
- (4) Connecting Rod Bearings
- (4) Connecting Rod Bearings
- (1) Oil Suction Connection Gasket
- (1) Upper Engine Gasket Set
- (4) O-Ring Seals
- (4) Exhaust Manifold Gaskets
- (1) Cylinder Head Gasket
- (1) Cylinder Head Gasket
- (1) O-Ring Seal
- (2) O-Ring Seals
- (1) Rectangular Ring Seal
- (2) Turbo Hose O-Ring Seals
- (2) O-Ring Seals
- (1) Turbocharger Gasket
- (1) Thermostat O-Ring Seal
- (2) Sealing Washers
- (4) O-Ring Seals
- (4) O-Ring Seals
- (1) Turbo Oil Drain Gasket
- (4) Sealing Washers
- (12) O-Ring Seals
- (2) Sealing Washers
- (1) Rocker Lever Housing Gasket
- (4) Noise Isolators
- (1) Ring Seal
- (1) Filler Cap Gasket
- (1) O-Ring Seal
- (1) O-Ring Seal
- (1) Valve Cover Gasket
- (4) Plain (Copper) Washers
Warranty
6-month warranty.
What Rebuild Kit and Gasket Set Includes
| Qty | Component | Part Number |
|---|---|---|
| 1 | Oil Pan Gasket | 4897877, 4939246 |
| 1 | Lower Thrust Bearing | 3945528, 3978824 |
| 4 | 1.0mm Piston Kits | 4089421, CUM4089421 |
| 8 | Piston Pin Retainers | 3920691 |
| 4 | Piston Pins | 3934047 |
| 4 | 1.0mm Engine Pistons | 3972886 |
| 4 | 1.0mm Piston Ring Sets | 4089182 |
| 4 | Top Piston Rings | 3927245 |
| 4 | 1.0mm Second Piston Rings | 3943546 |
| 4 | 1.0mm Oil Rings | 3933586 |
| 1 | Main Bearing Kit | 3802010 |
| 4 | Top Main Bearings | 3929016 |
| 5 | Bottom Main Bearings | 3929021 |
| 1 | Thrust Bearing | 3926723 |
| 4 | Connecting Rod Bearings | 3969562 |
| 4 | Connecting Rod Bearings | 4893693 |
| 1 | Oil Suction Connection Gasket | 4898301 |
| 1 | Upper Engine Gasket Set | 4025107, 4089780 |
| 4 | O-Ring Seals | 145530 |
| 4 | Exhaust Manifold Gaskets | 2830444, 4896350 |
| 1 | Cylinder Head Gasket | 2830706, 4894688, 4898414, 4898853 |
| 1 | Cylinder Head Gasket | 2830707, 4894722, 4898415, 4898854 |
| 1 | O-Ring Seal | 3066211 |
| 2 | O-Ring Seals | 3865398 |
| 1 | Rectangular Ring Seal | 3906252, CUM3906252 |
| 2 | Turbo Hose O-Ring Seals | 3883963, 3922794 |
| 2 | O-Ring Seals | 3928624 |
| 1 | Turbocharger Gasket | 3932475 |
| 1 | Thermostat O-Ring Seal | 3942454 |
| 2 | Sealing Washers | 3283280, 3903037, 3918191, 3935171, 3963983 |
| 4 | O-Ring Seals | 4890926 |
| 4 | O-Ring Seals | 4890929 |
| 1 | Turbo Oil Drain Gasket | 4891288 |
| 4 | Sealing Washers | 4893741 |
| 12 | O-Ring Seals | 4894095 |
| 2 | Sealing Washers | 4895620 |
| 1 | Rocker Lever Housing Gasket | 4899230 |
| 4 | Noise Isolators | 4899239 |
| 1 | Ring Seal | 3533955 |
| 1 | Filler Cap Gasket | 4895461, 5255450 |
| 1 | O-Ring Seal | 4898372 |
| 1 | O-Ring Seal | 4898439 |
| 1 | Valve Cover Gasket | 4899228 |
| 4 | Plain (Copper) Washers | 4899689 |
Specifications
| Brand | 4BTdiesel |
|---|---|
| Compatible Brand | For CUMMINS |
| Compatible Engine Brand | For CUMMINS |
| Replacement Part Number | IF4089421-4B |
| Condition | New |
Shipping Spec
| Weight | 16.329 kg |
|---|---|
| Dimensions | 50.8 × 38.1 × 50.8 cm |
โ Replace Part Number: IF40894214B
โ Fit for: Cummins 4B engines
โ Built to OEM specs for a proper fit
โ Send us an inquiry for price
Warranty
For new Cummins parts, we provide 90-day warranty. Quality is our commitment. 4BTDiesel ensures your peace of mind! For complete warranty details, please view our Warranty Policy.
Shipping
We ship worldwide and offer full expedited delivery to ensure your construction machinery back in action, fast. Check out our Shipping Policyย for more details.
Easy Return
We prioritize your satisfaction. If your order doesn't meet your expectations within 90 days, you may be eligible for a refund. See our Easy Return Policy for details.
