1941346301@qq.com
19924579082
Product Overview：
This oil pump is a direct interchangeable replacement for Cummins part numbers 3821572, 3015273, and 3821575, fully compatible with NTA855 / NT855 / NH855 engines. It meets OEM specifications, ensuring reliable lubrication for heavy-duty applications.
Specification Table:
| Part No. | Upgrade Tier | Core Positioning | Cross-Reference Parts | Compatible Engines | Key Applications |
|---|---|---|---|---|---|
| 3821575 | Original OEM Benchmark | Factory original core prototype for Cummins NT855 oil pumps, official cross-reference benchmark for all same-spec products | 3821572, 3015273, 3045882, 3077770, 3609837 | NT855 Big Cam II/III/IV, Full NTA855 & NH855 Series | OEM replacement for HD trucks, buses, construction equip, gensets, marine power; fits early NT855 engines |
| 3015273 | Mid-Term Optimized Upgrade | Factory upgraded model based on 3821575, optimized gear structure & oil flow, improved high-load durability; fully compatible with all same-spec models | 3821572, 3821575, 3045882, 3012728 | NT855 Big Cam III/IV, NTA855, NH855 | Replacement for high-load working conditions of heavy construction, large gensets, mining equipment; fits Big Cam III/IV engines |
| 3821572 | Latest Universal Upgrade (Market Mainstream) | Final factory replacement for 3821575 & 3015273, optimized pump structure, heat dissipation & sealing, wider fitment; 100% compatible with all previous models | 3821575, 3015273, 3045882, 3077770, 3609837, 3821571 | NT855 Big Cam II/III/IV, Full NTA855 & NH855 Series | Universal replacement for HD trucks, buses, construction equip, gensets, marine power; the most popular model in the global aftermarket |
Why Choose Us？
✅ 100% Original Genuine Parts, Factory Direct Supply
✅ Strict Quality Testing, Full Pre-shipment Inspection
✅ Authorized Agent Wholesale Price, Cost-effective
✅ Professional Cummins Technical Matching Support
Name: Aandy
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Tel：19924579082
Email：1941346301@qq.com
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