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Cummins 4B 3.9L, 4B 4.5L Inframe Engine Rebuild Kit, New (IF40896184B)
โ Replace Part Number: IF40896184B
โ Fit for: Cummins 4B 3.9L, 4B 4.5L 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 kitย manufactured and assembled in an ISO 9001: 2008 certified facility.
- Want durability? You got it! This kit comes withย tri-metal construction rod and main bearings.
- Don’t overpay when you don’t have to! With 4BTdiesel you’ll getย equal or better quality compared to the OEM at a much lower price!
- 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 theย correct materialsย are used to ensure gaskets have excellent performance inย functionality and sealability.
- Trust our on staffย 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 your rig.
Kit Contents:
- (4) .50mm Piston Kits
- (8) Piston Pin Retainers
- (4) Piston Pins
- (4) .50mm Engine Pistons
- (4) .50mm Piston Ring Sets
- (4) Compression Piston Rings
- (4) Compression Piston Rings
- (4) Oil Piston Rings
- (1) Main Bearing Set
- (4) Top Main Bearings
- (5) Bottom Main Bearings
- (1) Thrust Bearing
- (1) Oil Pan Gasket
- (4) Connecting Rod Bearings
- (4) Connecting Rod Bearings
- (1) Gasket
- (1) Upper Engine Gasket Set
- (4) Banjo Seals
- (4) Injector Seals
- (1) Rectangular Ring Seal
- (1) Washer
- (4) Rocker Cover Bolt Seals
- (1) Metal Gasket
- (1) Intake Manifold Gasket
- (2) Washers
- (4) Injector Sleeves
- (8) Valve Stem Seals
- (4) Injector Seals
- (1) Thermostat Seal
- (4) Exhaust Manifold Gaskets
- (1) Turbo Oil Drain Gasket
- (1) Rectangular Ring Seal
- (1) Cylinder Head Gasket
- (4) Valve Cover Gaskets
- (4) Noise Isolators
- (4) Washers
- (1) Gasket
- (1) Sealing Washer
Warranty
6-month warranty.
What Rebuild Kit and Gasket Set Includes
| Qty | Component | Part Number |
|---|---|---|
| 4 | .50mm Piston Kits | 4089618 |
| 8 | Piston Pin Retainers | 3284366, 3901706, 3920691, CUM3901706 |
| 4 | Piston Pins | 3919053, 3934047, CUM3934047 |
| 4 | .50mm Engine Pistons | 3957417 |
| 4 | .50mm Piston Ring Sets | 4089614 |
| 4 | Compression Piston Rings | 3904347 |
| 4 | Compression Piston Rings | 3937428 |
| 4 | Oil Piston Rings | 3933585 |
| 1 | Main Bearing Set | 3802010 |
| 4 | Top Main Bearings | 3929016 |
| 5 | Bottom Main Bearings | 3929021 |
| 1 | Thrust Bearing | 3926723 |
| 1 | Oil Pan Gasket | 3938162 |
| 4 | Connecting Rod Bearings | 4893693 |
| 4 | Connecting Rod Bearings | 3901170, 3901230, 3939859, 3969562, CUM3901170 |
| 1 | Gasket | 3900454, 3905468, 3914383, 3931349, 3938157, CUM3931349 |
| 1 | Upper Engine Gasket Set | 3804896, 3802361, 3802240, 3802216, 3802016, 3802015 |
| 4 | Banjo Seals | CUM3903380, 4942278, 3903380 |
| 4 | Injector Seals | CUM3906659, 3920174, 3906659 |
| 1 | Rectangular Ring Seal | 3906694 |
| 1 | Washer | 3906773 |
| 4 | Rocker Cover Bolt Seals | 3910824, 3901837 |
| 1 | Metal Gasket | 3912220, 3903251 |
| 1 | Intake Manifold Gasket | CUM3931605, 3938153, 3931605, 3914028, 3901999 |
| 2 | Washers | 3918188, 3903728 |
| 4 | Injector Sleeves | CUM3919358, 3919358 |
| 8 | Valve Stem Seals | CUM3921640, 3921640, 3921639, 3901097 |
| 4 | Injector Seals | CUM3923261, 3923261, 3919725 |
| 1 | Thermostat Seal | CUM3923331, 3923331, 3920020, 3903301 |
| 4 | Exhaust Manifold Gaskets | 3927154, 3905443, 3901456 |
| 1 | Turbo Oil Drain Gasket | CUM3937706, 5264569, 3942725, 3937706, 3931350, 3928919, 3914388, 3819378, 3285747, 3282113 |
| 1 | Rectangular Ring Seal | 3936876, 3902363 |
| 1 | Cylinder Head Gasket | 3283333 |
| 4 | Valve Cover Gaskets | CUM3930906, 3930906, 3902666, 3902494 |
| 4 | Noise Isolators | 3930543 |
| 4 | Washers | 3900808 |
| 1 | Gasket | CUM3901356, 3901356 |
| 1 | Sealing Washer | CUM3902425, 3902425 |
Specifications
| Brand | 4BTdiesel |
|---|---|
| Compatible Brand | For CUMMINS |
| Compatible Engine Brand | For CUMMINS |
| Replacement Part Number | IF4089618-4B |
| Condition | New |
Shipping Spec
| Weight | 16.329 kg |
|---|---|
| Dimensions | 110.5 × 33.0 × 34.3 cm |
โ Replace Part Number: IF40896184B
โ Fit for: Cummins 4B 3.9L, 4B 4.5L 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.
