Mitsuboshi B42 Classic V-Belt
Engineered by Mitsuboshi, a global leader in power transmission solutions, the B42 Classic V-Belt delivers dependable performance across light-duty and heavy-duty applications—from HVAC drives and compressors to agricultural machinery and machine tools 

Key Features

B-Section Profile (5/8" Top Width): Precision-molded to ISO RMA standards for optimal belt-to-pulley contact and efficient power transfer 

42" Effective Circumference (45" Outside Length): Guarantees a snug fit and minimal slippage in fractional-horsepower drives 

Premium Wrapped Construction: High-quality synthetic rubber compound resists heat, oil, and flex fatigue; anti-static wrap minimizes risk in sensitive environments 

Enhanced Durability: RMA-rated tensile cords and abrasion-resistant outer wrap ensure long service life under variable loads and speeds.

Benefits

Consistent Drive Ratios: Tight manufacturing tolerances reduce vibration, noise, and wear, extending equipment uptime.

Broad Compatibility: Standard B-section sizing simplifies maintenance and inventory—one belt fits dozens of OEM and aftermarket designs.

Quick Installation: Drop-in replacement with no special tools required, minimizing service downtime.

Cross References

John Deere TCU20822
Gates    5L450 
Dayco    BP42 (replaces Gates B42, ACDelco IB42, CARQUEST B42, Goodyear 77042, NAPA B42) 
Goodyear    B42 
Bando    5L450 
NAPA Automotive    B42 
Universal Aftermarket    OTB40-0186 (replaces B42/5L450) 
Cogged Variant    BX42 TCU20822