The ACL Race Series Main Bearing (Part #5M1644H-STD) is a precision-engineered main bearing set designed for high-performance engine applications. These bearings support the crankshaft within the engine block, enabling smooth rotation while handling significant radial and thrust loads. Engineered for optimal oil film retention and wear resistance, ensuring consistent engine performance. Available in Standard size for direct replacement applications requiring OE clearances. Engineered with strict quality control standards to ensure consistent performance and reliable engine operation.

Applicable to:
- Audi A3 (8L1) 1.6 (AEH)
- Seat Cordoba Vario (6K5) 1.6 (AEH)
- Seat Cordoba (6K1, 6K2) 1.6 (AEH)
- Seat Ibiza II (6K1) 1.6 (AEH)
- Seat Leon (1M1) 1.6 (AEH)
- Seat Toledo II (1M2) 1.6 (AEH)
- Skoda Octavia I Combi (1U5) 1.6 (AEH)
- Skoda Octavia I (1U2) 1.6 (AEH)
- Audi A3 (8L1) 1.6 (AKL)
- Seat Cordoba Vario (6K5) 1.6 (AKL)
- Seat Cordoba (6K1, 6K2) 1.6 (AKL)
- Seat Ibiza II (6K1) 1.6 (AKL)
- Seat Leon (1M1) 1.6 (AKL)
- Seat Toledo II (1M2) 1.6 (AKL)
- Skoda Octavia I Combi (1U5) 1.6 (AKL)
- Skoda Octavia I (1U2) 1.6 (AKL)
- Audi A4 B6 (8E2) 2.0 (ALT)
- Audi A4 B6 Avant (8E5) 2.0 (ALT)
- Audi A4 B6 Convertible (8H7) 2.0 (ALT)
- Audi A4 B7 (8EC) 2.0 (ALT)
- Audi A4 B7 Avant (8ED) 2.0 (ALT)
- Audi A6 C5 (4B2) 2.0 (ALT)
- Audi A6 C5 Avant (4B5) 2.0 (ALT)
- Audi A4 B6 (8E2) 2.0 FSI (AWA)
- Audi A4 B6 Avant (8E5) 2.0 FSI (AWA)
- Audi A4 B7 (8EC) 2.0 FSI (AWA)
- Audi A3 (8P1) 2.0 FSI (AXW)
- Audi A3 Sportback (8PA) 2.0 FSI (AXW)
- Audi A3 (8P1) 2.0 TFSI (AXX)
- Audi A3 (8P1) 2.0 TFSI Quattro (AXX)