NTN JPU57-54+JF598 Timing Belt Tensioner Pulley

The NTN JPU57-54+JF598 is a precision-engineered timing belt tensioner pulley designed to maintain proper belt tension throughout the engine's timing system. Manufactured by NTN — one of the world's leading bearing and powertrain component manufacturers — this tensioner pulley is built to exacting OEM specifications for reliable, long-lasting performance.

Key Features:

• OEM-quality construction engineered to exact original equipment specifications
• Dimensions: 57 x 31 x 39 mm for precise fitment
• Smooth, low-friction bearing keeps timing belt properly tensioned and aligned under all operating conditions
• Durable materials resist heat, wear, and the demands of continuous engine operation
• Direct OEM replacement for part number MD329976

Cross-Reference Part Numbers:

• OEM: MD329976
• Gates: T41211 / TKR9181
• SKF: VKM75615
• Dayco: ATB2347
• INA: 531034120
• GMB: GT80990 / GT373.25

Replacing a worn or failing timing belt tensioner pulley is critical to protecting your engine's timing system. A faulty tensioner can cause improper belt tension, accelerated belt wear, or catastrophic engine timing failure. The NTN JPU57-54+JF598 restores correct tension and keeps your timing belt performing reliably.