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⚙️ Upgrade your engine’s heartbeat with DNJ’s precision rod bearings!
The DNJ RB4120 Rod Bearing Set is a high-quality, metal plain bearing engineered for durability and smooth operation. Designed to fit RB4120 specifications, it ensures minimal friction and optimal engine performance. Compatible with various oil lubricants and featuring a compact design, this bearing set is a reliable upgrade for professional-grade engine maintenance.









| ASIN | B00TM27N02 |
| Bearing Number | RB4120 |
| Bearing Type | Plain Bearing |
| Best Sellers Rank | #1,690,311 in Automotive ( See Top 100 in Automotive ) #440 in Automotive Replacement Engine Connecting Rod Bearings |
| Brand | DNJ |
| Brand Name | DNJ |
| Compatible Lubricant | Oil |
| Customer Reviews | 4.0 out of 5 stars 22 Reviews |
| Item Dimensions | 7 x 4 x 2 inches |
| Item dimensions L x W x H | 7 x 4 x 2 inches |
| Manufacturer | DNJ |
| Material | Metal |
| Material Type | Metal |
| Part Number | RB4120 |
| Unit Count | 1 Count |
J**.
SAVED MY 03
Did a rod bearing change on my 03 3.8 mustang works great if you catch it on time make sure to sand down ALL surfaces before replacing rod bearings (inside of rod bearing caps and all the way around the surface just for a few seconds to get smooth touch, then sand crank shaft for smooth finish) and Go a thicker oil weight than normal this will forsure get you a few extra thousand miles. PRIME ENGINE OIL BEFORE FIRST START
V**D
Bearings
Appears to be good quality and fitness
A**R
Non reliable parts
Bearings felled 5 weeks after installing and destroyed my crankshaft and i am ase certified technician for22yrs now so they were installed right
Trustpilot
1 week ago
5 days ago