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Cummins ISC 8.3L Inframe Engine Rebuild Kit, New (IF4955237)

โ€“ Replace Part Number: IF4955237
โ€“ Fit for: Cummins ISC 8.3L engines
โ€“ Built to OEM specs for a proper fit
โ€“ Send us an inquiry for price

Engine Serial Number (ESN) โ€” Have your engine serial number? Enter it here. We can use it to help review whether this part matches your engine.
SKU: P0265946
30-Day Money Back

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.

  • 30-Day Money Back
  • 2-7 Days Fast Delivery
  • 6 Months Warranty
  • 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.

  • You’ll receive aย brand new rebuild kitย manufactured and assembled in anย ISO 9001:2008 certified facility.ย This ensures excellentย quality and consistency.ย Plus, this kit will restore your engine toย good working conditionย andย extend the life of it.ย 
  • Durability is vital when it comes to a diesel engine, and here at 4BTdiesel we make sure the parts you purchase are high-grade.ย The rod and main bearings included are constructed with aย tri-metal materialย that will help your engine last aย million or more miles.ย 
  • What aboutย strength and durability? You’re in luck, theย forged articulatedย piston crowns will give you the longย lasting strength and durabilityย your engine needs to thrive in extreme conditions. Adding onto that, the piston pins areย hardened and tempered for improved strength and wear resistance.ย You can’t beat that!ย 
  • There’sย no doubtย this kit is tough as nails. Let’s talkย value.ย Quality willย meet or exceed the OE’s at a much lower price,ย keeping your pocketย full of cash.ย Also, the fact that there areย all new parts and no core charge racks up the savings.
  • To make your life easier, overhaul kits areย packed in subassemblies by function, making installation easier and quicker.ย Savingย time and moneyย is a win-win situation, and so is shopping with 4BTdiesel.ย 
  • Yes, we are Aftermarket. But here’s the kicker, our parts areย built to strict OE specificationsย giving youย exact fit and efficient functionality.ย Seriously, you’ll get back up and running in no time.
  • What about clearances and tolerances?ย Computer controlled piston machiningย  is used to maintainย proper clearances.ย Additionally, the pistons areย CNC turned to precise tolerances.ย What’s better than that?
  • Your engine will be a well oiled machine with oil control rings designed with precise tangential tension for proper oil control.ย On another note, leakage won’t be a problem.ย 
  • Let’s seal the deal. The sealing products areย proudly USA madeย and are crafted withย 100% Asbestos-Free Material.ย To top it off, gaskets useย correct materials for maximum sealing performance.ย 

Kit Contents

  • (6) Piston Kits
    • (12) Piston Pin Retainers
    • (6) Piston Ring Sets
      • (1) Oil Piston Ring
      • (1) Compression Piston Ring
      • (1) Compression Piston Ring
    • (6) Piston Pins
    • (6) Piston Skirts
    • (6) Piston Crowns
  • (6) Cylinder Liners
  • (6) Liner Seals
  • (1) Main Bearing Set
  • (6) Connecting Rod Bearings
  • (6) Connecting Rod Bearings
  • (1) Oil Pan Gasket
  • (1) Oil Pickup Tube Gasket
  • (1) Upper Engine Gasket Set
    • (1) O-Ring Seal
    • (1) Turbo Hose O-Ring Seal
    • (1) O-Ring Seal
    • (6) Mid-Range XPI Injector Seals
    • (6) Exhaust Manifold Gaskets
    • (1) Turbo Oil Drain Gasket
    • (1) Valve Cover Gasket
    • (2) Sealing Washers
    • (5) Sealing Washers
    • (23) Sealing Washers
    • (1) Breather Mounting Seal
    • (1) Rocker Lever Housing Gasket
    • (2) Connection Gaskets
    • (3) O-Ring Seals
    • (2) O-Ring Seals
    • (6) O-Ring Seals
    • (6) O-Ring Seals
    • (1) Sealing Washer
    • (1) O-Ring Seal
    • (1) Cylinder Head Gasket
    • (24) Valve Stem Seals
    • (1) Gasket Connection
    • (1) O-Ring Seal
    • (2) O-Ring Seals
    • (1) O-Ring Seal
    • (1) Turbocharger Gasket
    • (1) O-Ring Seal
    • (1) Gasket
    • (1) Copper Gasket
    • (1) Air Compressor Drive Support Gasket

Warranty

6-month warranty.

What Rebuild Kit and Gasket Set Includes

Qty Component Part Number
6 Piston Kits 4955237, 4940794, 4934266
12 Piston Pin Retainers 3920692, CUM3901996, 3901996, 3901922
6 Piston Ring Sets 4089644, 3948412
1 Oil Piston Ring 3921919
1 Compression Piston Ring 3948412
1 Compression Piston Ring 3964073
6 Piston Pins 3950549
6 Piston Skirts 3966721
6 Piston Crowns 4941396
6 Cylinder Liners 3948095, 3944344, 3800328
6 Liner Seals 3907177, 3917737, CUM3907177
1 Main Bearing Set 3945917, 3802210, 3802140, 3800270
6 Connecting Rod Bearings 3950661, CUM3901430, 3901460, 3901430
6 Connecting Rod Bearings 3966244
1 Oil Pan Gasket 3938160, CUM3914017, 3934044, 3914017, 3911818, 3906611
1 Oil Pickup Tube Gasket 3939352, CUM3914302, 3914302, 3906202
1 Upper Engine Gasket Set 4089758
1 O-Ring Seal 3046201, 172049
1 Turbo Hose O-Ring Seal 3922794, 3883963
1 O-Ring Seal 3931824
6 Mid-Range XPI Injector Seals 3937142
6 Exhaust Manifold Gaskets 5269779, 3943191, 3937479
1 Turbo Oil Drain Gasket CUM3937706, 5264569, 3942725, 3937706, 3931350, 3928919, 3914388, 3819378, 3285747, 3282113
1 Valve Cover Gasket 3959798
2 Sealing Washers 3963983, 3935171, 3918191, 3903037, 3283280
5 Sealing Washers 3963988, 3937155, 3935172
23 Sealing Washers 3963990, 3957427
1 Breather Mounting Seal 3073966
1 Rocker Lever Housing Gasket 3966708, 5272959
2 Connection Gaskets, 3967891,
3 O-Ring Seals 4010519, 3330202
2 O-Ring Seals 4010643
6 O-Ring Seals 4062328, 3972753, 3947540
6 O-Ring Seals 4890926
1 Sealing Washer 4934280, 3963893
1 O-Ring Seal 3627695
1 Cylinder Head Gasket 4981796, 3967059
24 Valve Stem Seals 3948578, 3991267, 3943889, 3943888
1 Gasket Connection 4937032
1 O-Ring Seal 3973512, 3990084, 145533
2 O-Ring Seals 3678603
1 O-Ring Seal 3682177
1 Turbocharger Gasket 3755843, 3016246
1 O-Ring Seal 3883284, CUM3883284
1 Gasket 3901356, CUM3901356
1 Copper Gasket 3920773, 3900216
1 Air Compressor Drive Support Gasket 3685614
Brand4BTdiesel
Compatible BrandFor CUMMINS
Compatible Engine BrandFor CUMMINS
ConditionNew

Shipping Spec

Weight49.895 kg
Dimensions71.1 × 41.9 × 33.7 cm

โ€“ Replace Part Number: IF4955237
โ€“ Fit for: Cummins ISC 8.3L engines
โ€“ Built to OEM specs for a proper fit
โ€“ Send us an inquiry for price

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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.