Premium 3802070 Cummins N14 main bearing set for heavy-duty 14L engines. Trimetal composition ensures maximum load capacity for Kenworth T800 and Peterbilt 379 fleets. Prevents bearing spin-out. Global export ready. Request quote!
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Cummins N14 main bearing set (OEM: 3802070) featuring a reinforced high-load trimetal overlay.
Prevents bearing spin-out in long-haul applications. Fits: Kenworth T800, Peterbilt 379, and Freightliner FLD heavy trucks.
In stock for immediate global dispatch.
The Cummins N14 is the legendary “Million Mile Engine,” but reaching that milestone requires a bottom end capable of handling immense torque. Our Cummins N14 Main Bearing Sets are precision-engineered to restore oil pressure and crankshaft stability in both N14 Celect and Celect Plus models. Designed as a direct replacement for OEM 3802070, these bearings are the standard for heavy-duty overhauls in Peterbilt 379s and Kenworth W900 haulers.
Ruich Value manufactures these bearings using a high-load Copper-Lead Tri-Metal material, essential for withstanding the high compression ratios of the 14-liter platform. Whether you are an engine rebuilder servicing fleet trucks or a farmer maintaining a Case IH Steiger tractor, our aftermarket solution delivers OEM-level durability at a wholesale price point.
| Specification | Value |
|---|---|
| Product Type | Main Bearing Set |
| Material Composition | Trimetal (Steel Back, Copper-Lead, Babbitt Overlay) |
| Engine Platform | Cummins N14 (14L) |
| Surface Coating | Tin-Lead Overlay (Anti-Friction) |
| Dimensional Tolerance | +/- 0.005mm (Precision Match) |
| Fatigue Resistance | High-Tensile Steel Backing for Class 8 Duty |
| OEM Reference | 3802070 |
| Cross Reference | 3044439, 3066880, 206600 |
| Typical Applications | Kenworth T800, Peterbilt 379, Freightliner FLD, International 9400i |
| Application Category | Class 8 Heavy Logistics & Over-the-Road Transport |
| Engine Series | Application Field | Verified Equipment Models |
|---|---|---|
| Cummins N14 Celect Plus | Heavy-Duty Trucks (Class 8) | Peterbilt 379, Kenworth W900, Freightliner FLD120, International 9800 |
| Cummins N14 (Mech/Elec) | Agriculture (Tractors) | Case IH Steiger 9370, 9380, 9390 4WD Tractors |
| Cummins NT855 Big Cam | Construction & Mining | Ingersoll Rand Compressors, Older Terex Dump Trucks |
Ruich Value supplies a dedicated range of bearings for Cummins 14L and 15L heavy-duty engines.
Category coverage: NT855; N14 Celect; ISX15 (Single/Dual Cam); M11/ISM.
| Engine Model | Item Name | Part No. |
|---|---|---|
| 6BT / EQBT (5.9L) | Main Bearing | 3929016, 3929021, 3901150, 3901306, (3802070 set), 3927772, 4892114/4892715 |
| B Series (3.9L/4.5L) / QSB | Main Bearing | 3978818 / 3978820 / 3978822 (Set), 3977272 |
| B Series (3.9L/4.5L) / QSB | Connecting Rod Bearing | 3969562, 4893693 |
| EQBTA | CAM Bushing | 3971970, 3901090, 3901170 |
| 4BTA390 | Connecting Rod Bearing | 3901170, 3941476 |
| Cummins C (8.3L) | Main BearingMain Bearing | 3944158 / 15/1163, 3945917 |
| Cummins C (8.3L) | Connecting Rod Bearing | 3950661, 3917430 (Standard) |
| Cummins C (8.3L) | Flanged Bearing | 3944163 |
| Cummins C (8.3L) | CAM Bearing | 3943199, 3945329 |
| Cummins C (8.3L) | CAM Bushing | 3913990 |
| Cummins L (10L) | Main Bearing | 3901590, 3919840, 3926798 |
| Cummins L (10L) | Connecting Rod Bearing | 3966344 / 3950661 |
| Cummins D (B Series) | Flanged Bearing | 3978822 / 24 (Thrust Washer Set) |
| ISDe (Cummins Renault D) | CAM Bearing | D4889112 |
| ISDe (Cummins Renault D) | CAM Bushing | D4890059 |
| ISDe (Cummins Renault D) | Rod Bearing | D4893637 |
| Dongfeng Renault (DCI11) | Main Bearing | D5010295445 (Upper), D5010295446 (Lower) |
| Dongfeng Renault (DCI11) | Connecting Rod Bearing | D5010359940 (Upper), D5010477479 (Lower) |
| Dongfeng Renault (DCI11) | Thrust Washers | D5010295448 / D5010295447 |
| QSZ(ISZ)13 | Main Bearing | 4999939 (Upper), 4999940 (Lower) |
| QSZ(ISZ)13 | Connecting Rod Bearing | 4999948 (Upper), 4999949 (Lower) |
| FOTON CUMMINS (3.8L) | Main Bearing | 4948505/4948506 |
| FOTON CUMMINS (3.8L) | Flanged Bearing (Upper/Lower) | 4948507/4948508 |
| FOTON CUMMINS (3.8L) | Connecting Rod Bearing (Upper/Lower) | 4948509/4949510 |
| FOTON CUMMINS (2.8L) | Main Bearing (Upper/Lower) | 4996250/49966251 |
| FOTON CUMMINS (2.8L) | Flanged Bearing | 4946031 |
| FOTON CUMMINS (2.8L) | Connecting Rod Bearing | 5261124 / 5284535 / 5340181 / 5348887 / 5261125 / 5284537 / 5340182 |
| NT855 (13L/15L) | Main Bearing | 3801260 |
| NT855 (13L/15L) | Connecting Rod Bearing | 214950 |
| NT855 | Thrust Washers (Small Hole) | 203660 |
| N14 (NT743/NH220) | Thrust Washers | 3020557 |
| N14 (NT74) | Main Bearing | 3801260 |
| M11 (LT10) | Main Bearing | 3016770 (Upper), 3016780 (Lower) |
| M11 (LT10) | Thrust Washers | 3016760 (Set), 4025125 (Without Flange) |
| KTA(QSK)19 | Main Bearing | 3016760, AR12270A |
| KTA(QSK)19 | Connecting Rod Bearing | 205840 |
| KTA(QSK)19 | Thrust Washers | 205112 |
| KTA(QSK)38 / KTA(QSK)50 | Main Bearing | 3018210 (Standard Set), AR12250 |
| KTA(QSK)38 / KTA(QSK)50 | Connecting Rod Bearing | 3042390 |
| KTA(QSK)38 / KTA(QSK)50 | Thrust Washers | 3000139 |
| QSX(ISX)15 | Main Bearing | 3678555 (Upper), 3678556 / 3800298 (Upper), 4089139 / 4089405 (Lower) |
| QSX(ISX)15 | Connecting Rod Bearing | 4925971 |
| QSX(ISX)15 | Thrust Washers | 4925975 |
A1: Symptom: Gradual decline in oil pressure and knocking sound from the engine block. Diagnosis: In high-mileage heavy trucks, fatigue of the Babbitt overlay allows the steel back to contact the crankshaft, leading to journal scoring. Solution: Our 3802070 trimetal sets are designed with a thicker load-carrying copper-lead layer, allowing them to handle the high combustion pressures of the N14 engine even after hundreds of thousands of miles.
A2: Technical Detail: Main bearing caps must be tightened to 405 Nm (300 ft-lb) plus torque-angle check. Pro-Tip: Check crankshaft journal end play (thrust clearance) between 0.18mm – 0.46mm. Improper end play will cause the thrust bearing half to overheat and melt, ruining the entire 3802070 set within days.
A3: Diagnosis: Bimetal bearings are insufficient for the 14L platform’s massive torque peaks. Our Solution: The trimetal construction provides the structural rigidity needed to prevent the shell from “spinning” inside the block housing. This is essential for long-haul Class 8 trucks where continuous high-torque output is standard.
Need pricing for OEM 3802070 sets or N14 overhaul kits? Our team supports distributors worldwide.
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