Maximize your diesel engine’s performance with the OTTO Fuel Injection Pump (P/N: 101605-9033), a top-tier aftermarket replacement built for unbeatable durability and perfect OEM-style fitment. This high-pressure diesel pump, engineered by Zexel & Bosch standards, delivers consistent fuel delivery for Isuzu 4JB1 & 4JG2 engines, offering a budget-friendly yet reliable alternative to genuine OEM parts.

Maximize your excavator’s engine performance with the OTTO 8-98346317-0 Fuel Injection Pump, a premium aftermarket replacement engineered for durability and precise OEM fitment. This high-quality fuel pump delivers consistent, accurate fuel delivery to your Isuzu 4HK1 diesel engine, offering a cost-effective alternative to genuine OEM parts.

Maximize your excavator’s engine performance with the OTTO 4HK1 Engine ECU Controller, a premium aftermarket replacement crafted for stable operation and precise OEM-grade fitment. This high-performance engine computer board restores reliable electronic control to your heavy equipment, delivering a cost-effective alternative to genuine OEM control modules.

Maximize your excavator’s electrical stability with the OTTO Engine Wiring Harness, a premium aftermarket replacement designed for durability and precise fitment. This high-quality cable assembly restores reliable electrical connection to your Isuzu 4JJ1 engine, offering a cost-effective alternative to OEM parts.

The OTTO Long Cylinder Head is a professional engine cylinder head component designed exclusively for 4HK1 engines in excavators. It provides a secure foundation for valves, valve seats, and other top-end engine parts, ensuring airtight sealing, smooth valve operation, and consistent engine power output—essential for restoring engine functionality and minimizing downtime in harsh heavy-duty working environments.

This OTTO piston cooling nozzle (part number 1-13342139-2) is designed for Isuzu 6WG1 engines in excavators like the ZX450, PC450, and PC490. It precisely sprays oil onto the piston underside to regulate temperature, reduce thermal stress, and enhance engine durability and performance.

This OTTO connecting rod bearing (part number 1-12271072-1) is engineered for Isuzu 6WG1 engines used in excavators like the ZX450, PC450, and PC490. It ensures precise fit, reduced friction, and reliable durability within the engine's rotating assembly for optimal performance.

This OTTO air intake hose (part number 1-11742083-2) is designed for Isuzu 6WG1 engines used in excavators like the ZX450, PC450, and PC490. Made from durable rubber, it ensures secure and flexible airflow into the engine, enhancing performance and reliability.

This OTTO oil pressure switch (part number 8-97324373-0) is a heavy-duty assembly designed for Isuzu 6HK1 engines in excavators like the ZX330, XE370C, and ZX120. It provides reliable engine oil pressure monitoring to ensure proper lubrication and protection against engine damage.

This genuine OEM piston ring set is designed for direct replacement in Komatsu ZX200-3, ZX330-3, PC200, and PC330 excavator engines equipped with 4HK1 or 6HK1 engines.

This genuine OEM crankshaft thrust washer is designed for direct replacement in Isuzu 6WG1 engines, specifically for ZX450, PC450, and PC490 excavator models.

This genuine OEM water pump drive belt is designed for direct replacement on Isuzu 6BG1 engines in ZX200-5G, PC200, PC210, and PC220 excavator models.