King MB7776SI0.5 0.50 O/S Main Bearing Set for 2008-2021 BMW N52/N53/N55 Engines

Regular price: $90.95
Regular price
Sale price: $90.95

Shipping calculated at checkout.

In Stock: 14

Orders by 1pm PST ship same business day

Free Shipping w/3-4 Day Delivery

Authorized Dealer

Fitment Guarantee

30-Day Hassle Free Returns

Product Specification:

SKU:KINGMB7776SI0.5

MPN: MB7776SI0.5

UPC: 611500587283

Weight: 1.2 lb

Inventory: 14

Type: Bearings

Vehicle Fitment

2008-2021 BMW 1-Series/2-Series/3-Series/4-Series/5-Series/6-Series/7-Series/X-Series/Z-Series (N52B30A, N53B30A, N55B30A) - RWD/AWD

Features

Bimetal silicon-aluminum overlay for superior durability and wear resistance
0.50 mm oversize to restore oil clearance on machined crankshafts
360° oil groove ensures consistent lubrication
Precision-engineered for OEM journal dimensions
Full bearing set (7 pairs) for complete crank coverage
Compatible with both forged and stock crankshafts
Ideal for high-performance and rebuilt engines
Manufactured in the USA by King Engine Bearings (est. 1960)

Specifications

Undersize: +0.50 mm (0.0197")
Material: Silicon-aluminum overlay on steel backing
Bearing width: approx. 18.80 mm; thickness: ~2.499 mm :contentReference[oaicite:1]{index=1}
Fits crank journals for N52/N53/N55 series (journal diameter ~55.96-55.98 mm) :contentReference[oaicite:2]{index=2}

Included Components

7x pairs of main bearings (front, intermediates, rear)

Product Description

The King MB7776SI0.5 Main Bearing Set restores proper bearing clearance after crankshaft machining in BMW N52, N53, and N55 engines (2008-2021 models). The 0.50 mm oversize design ensures correct oil film thickness, reducing wear and maintaining engine performance. The silicon-aluminum bi-metal composition combines strength and embedability - ideal for both stock and lightly modified engines.

This full set of seven bearing pairs is perfect for engine rebuilds on 1-Series through 7-Series, X and Z models with RWD or AWD. The 360° oil groove delivers consistent lubrication across all journals. Ideal for enthusiasts and professionals rebuilding engines with machined cranks or forging upgrades. Precision-sized to match OEM journal specs; if you require a different oversize, King offers 0.25 and 0.75 mm options.