- On order
ACL trimetal connecting rod bearings Toyota 3UR-FE 5.7 V8
Set of 16 trimetal connecting rod half-bearings for Toyota 3UR-FE.
- Brand and treatment: ACL Race
- Compatibility: Tundra, Sequoia, Land Cruiser 200
- Engine codes: 3UR-FE
- Available sizes: standard to +0.25 mm, increased-clearance version (HX)
The Toyota 3UR-FE V8
The 3UR-FE is Toyota's 5.7 litre 32-valve V8, fitted to the Tundra, Sequoia and Land Cruiser 200. ACL lists a single bearing set for this engine: same crankpin diameter, a single set covers the family.
From the factory, this engine is fitted with standard production connecting rod bearings, sized for the loads of the original engine: as soon as power, engine speed or boost pressure increase, they reach their limits.
From the factory, Toyota fits these engines with connecting rod bearings under part number 13041-38060, and its workshop manual specifies a running clearance of 0.025 to 0.050 mm.
Trimetal connecting rod bearings
A trimetal bearing combines three layers with complementary roles: a steel back that provides structural strength, a copper-lead intermediate layer that takes the heavy loads and an anti-friction running layer that protects the crankpin. The complete set contains 16 half shells, i.e. 8 pairs.
An aluminium bi-metal bearing, intended for low to medium loads, tops out at around 8,000 psi; a performance trimetal bearing holds up to 12,000 psi, 50% more load capacity. It therefore gains strength and service life on turbocharged, supercharged or high-revving engines.
Technical specifications
| ACL bearings Crankpin Ø 55.982 / 56.000 mm Housing bore Ø 59.000 / 59.024 mm Width 17 mm |
| Reference | Brand and treatment | Size | Wall thickness (mm) |
|---|---|---|---|
| 8B8630H-STD | ACL Race - Untreated | Standard | 1.497 |
| 8B8630HX-STD | ACL Race - Untreated | Std, increased clearance (HX) | 1.484 |
| 8B8630H-.025 | ACL Race - Untreated | +0.025 | 1.510 |
| 8B8630H-.25 | ACL Race - Untreated | +0.25 | 1.622 |
Running clearance
Running clearance is the space left between the bearing and the crankpin, permanently filled by the oil film.
With the engine running, the crankpin does not touch the bearing: it rides on this oil film, which takes the load. The clearance sets the film thickness. Too small, it restricts oil flow, raises the temperature and invites seizure; too large, it lets the oil escape, the film loses its load capacity and oil pressure falls. The right clearance combines sufficient lubrication with an oil film that keeps carrying the load.
| Size / grade | When to choose it | ACL Race Series |
|---|---|---|
| Standard (STD) | Standard journal, not reground | 0.058 to 0.069 mm |
| Increased clearance (HX) | Wider clearance: high oil flow, high rpm | 0.083 to 0.094 mm |
| +0.025 mm | Polished journal | 0.058 to 0.069 mm |
| +0.25 mm | Journal reground to 0.25 mm | 0.058 to 0.069 mm |
Checking on assembly: lay a calibrated strip (Plastigauge) on the journal, torque the rod cap to spec, then compare the crushed strip against the gauge to read the clearance.
Technical guide
The ACL connecting rod bearings shown here are trimetal bearings built for engine tuning and racing. They withstand far higher loads than a standard bearing and come in several sizes: the standard size, a +0.025 mm size for a crankpin that has only been polished, a +0.25 mm regrind size and the HX version with increased clearance for high-revving engines or engines needing a high oil flow. This range lets you refit a reground crankshaft without changing product line and match the clearance to the oil and use chosen.
The brand
 |
Founded in Australia in 1949, ACL Bearing Company designs high-performance engine bearings. Its Race Series brings together precision trimetal bearings, offered in a wide choice of sizes and fitted to built engines around the world. |
Vehicle compatibility
This connecting rod bearing set fits the 3UR-FE V8 of the following Toyota models:
| Brand | Model (chassis) | Engine code | Power | Years |
|---|---|---|---|---|
| TOYOTA | LAND CRUISER 200 (_J2_) 5.7 V8 | 3UR-FE | 386 hp | 2007– |
| TOYOTA | LAND CRUISER 200 (_J2_) 5.7 V8 | 3UR-FE | 381 hp | 2008– |
| TOYOTA | LAND CRUISER 200 (_J2_) 5.7 V8 | 3UR-FE | 367 hp | 2011–2015 |
| TOYOTA | LAND CRUISER 200 (_J2_) 5.7 V8 | 3UR-FE | 362 hp | 2015– |
| TOYOTA | SEQUOIA (_K6_) 5.7 | 3UR-FE | 386 hp | 2007– |
| TOYOTA | SEQUOIA (_K6_) 5.7 | 3UR-FE | 381 hp | 2007– |
| TOYOTA | SEQUOIA (_K6_) 5.7 4WD | 3UR-FE | 386 hp | 2007– |
| TOYOTA | SEQUOIA (_K6_) 5.7 4WD | 3UR-FE | 381 hp | 2007– |
| TOYOTA | SEQUOIA (_K6_) 5.7 FLEX | 3UR-FE | 386 hp | 2008– |
| TOYOTA | TUNDRA Pick-up (_K5_, _K6_) 5.7 | 3UR-FE | 386 hp | 2006– |
| TOYOTA | TUNDRA Pick-up (_K5_, _K6_) 5.7 4WD | 3UR-FE | 386 hp | 2006– |
| TOYOTA | TUNDRA Pick-up (_K5_, _K6_) 5.7 Flexfuel | 3UR-FE, 3UR-FBE | 381 hp | 2006–2020 |
Why replace the bearings
A failing connecting rod bearing does not fail alone: it scores the crankpin, sends debris through the oil circuit and calls at least for a crankshaft regrind, when it does not also take out the rod and the block. On a built engine, a bearing set costs only a fraction of a regrind, and even less of a full rebuild: it is the cheapest part of the rotating assembly and the one whose failure costs the most.
-
Brand
-
Reference8B8630H-STD
4 other products in the same category
