4BD2
Showing 1–24 of 37 results
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4BD2, 4HE1
Clutch Disc 21T | Isuzu 4BD2 / 4HE1 / 1992 – 2004
Durable 21 Tooth Clutch Disc for Isuzu 4BD2 and 4HE1 engines (1992–2004). Provides smooth engagement, consistent torque transfer, and reliable operation under heavy-duty conditions. Perfect OEM-fit replacement for NPR/NQR trucks.
SKU: IEK-434 -
4BD2, 4HE1
Clutch Disc 21Th 300Mm | Isuzu 4BD2 / 4HE1 Engine / NPR NQR
High-performance 21 Tooth 300mm Clutch Disc designed for Isuzu 4BD2 and 4HE1 engines. Ensures smooth engagement, optimal torque transfer, and long service life in NPR/NQR commercial trucks. OEM-quality fit and performance guaranteed.
SKU: IEK-492 -
4BD2, 4HE1, 4JJ1
Clutch Master Cylinder Repair For Isuzu NPR-HD NQR NRR 4JJ1 3.0L 4BD2 3.9L 96-15
Premium-quality Clutch Master Cylinder Repair Kit designed for Isuzu NPR-HD, NQR, and NRR trucks equipped with 4JJ1 (3.0L) and 4BD2 (3.9L) engines. Perfect replacement to restore hydraulic clutch performance and smooth gear shifting for model years 1996–2015.
SKU: IEK-657 -
4BD1, 4BD2, 6BD1, 6BG1
Connecting Rod | Isuzu 4BD1 / 4BD2 / 6BD1 Engine
Durable Connecting Rod for Isuzu 4BD1 / 4BD2 / 6BD1 engines. Manufactured to OEM standards for precise fit, strength, and smooth operation in diesel truck and industrial engine applications.
Replacements: 5-12230036-1, 5122300361, IZ-5122300361, IZ5122300361, 512230-0361, VI5122300361
Fits: 4BD1 / 4BD2 / 6DB1
SKU: IEK-152 -
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4BD1, 4BD2
Crankshaft | Isuzu 4BD1 / 4BD2 Engine
Premium Crankshaft for Isuzu 4BD1 / 4BD2 engines, designed to deliver OEM-grade performance, perfect balance, and long-lasting reliability for diesel truck and industrial applications.
Fits: 4BD1 / 4BD2
Replacements: 5-12310-163-0, 5123101630
SKU: IEK-156 -
4BD1, 4BD2
Cylinder Head | Isuzu 4BD1 / 4BD2 Engine
Premium OEM-quality Cylinder Head designed for Isuzu 4BD1 / 4BD2 engines. Guarantees efficient combustion, reliable performance, and long service life for diesel trucks and machinery.
Fits: Isuzu 4BD1 / 4BD2
NPR / ELF
Part Number: 8-97141-821-1, 8-97141-821-2, 8971418211, 8971418212
SKU: IEK-161 -
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Isuzu 4BD2 Engine Rebuild Kits & Replacement Parts
The Isuzu 4BD2 engine rebuild kit is the proven, cost-effective way to restore compression, power, and durability to your Isuzu 4BD2 diesel engine. After years of service, pistons, rings, liners, bearings, and gaskets wear out—causing hard starts, blow-by, smoke, and rising oil consumption. A complete Isuzu 4BD2 engine rebuild kit replaces all critical wear components at once so you can rebuild confidently and return to predictable uptime. Every Isuzu 4BD2 engine rebuild kit is engineered to meet or exceed OEM specifications for fit, sealing integrity, and long service life.
Why Choose an Isuzu 4BD2 Engine Rebuild Kit?
- Complete Coverage: Each Isuzu 4BD2 engine rebuild kit includes pistons, rings, pins, cylinder liners, full gasket sets, main & rod bearings, and thrust washers.
- OEM-Level Tolerances: A high-quality Isuzu 4BD2 engine rebuild kit ensures consistent clearances and reliable sealing under load.
- Cost & Time Savings: Sourcing one Isuzu 4BD2 engine rebuild kit prevents mismatched parts and speeds up the overhaul.
- Performance Restoration: A fresh Isuzu 4BD2 engine rebuild kit brings back compression, reduces smoke, and stabilizes oil usage.
Common 4BD2 Applications
The Isuzu 4BD2 engine rebuild kit supports engines used in medium-duty trucks, buses, vocational chassis, construction machinery, forklifts, generators, and stationary power units. These duty cycles demand reliable low-RPM torque, clean starts, and long intervals between services—exactly what a correctly matched Isuzu 4BD2 engine rebuild kit is designed to sustain.
Do You Need an Isuzu 4BD2 Engine Rebuild Kit?
- Low Compression / Hard Starts: A 4BD2 engine rebuild kit restores proper combustion sealing and cranking pressure.
- Excess Oil Consumption: New rings and liners from an Isuzu 4BD2 engine rebuild kit reduce oil use and blow-by.
- Blue/White/Black Smoke: A comprehensive Isuzu 4BD2 engine rebuild kit corrects wear-related smoke issues.
- Knocking or Bearing Noise: Main & rod bearings in the Isuzu 4BD2 engine rebuild kit protect the crankshaft.
- Coolant/Oil Mixing: Fresh gaskets in an Isuzu 4BD2 engine rebuild kit resolve sealing failures.
Fitment & Sizing Guidance
Before you order your Isuzu 4BD2 engine rebuild kit, verify:
- Engine identification from the 4BD2 tag and any variant/emissions notes.
- Liner type (semi-finished or finished) and final bore size to match the Isuzu 4BD2 engine rebuild kit.
- Piston crown design, compression height, and ring pack dimensions.
- Main & rod bearing sizes (STD or undersize) based on measured journal diameters.
Installation Best Practices
- Mic crank pins/journals; confirm liner protrusion and piston-to-wall clearance before installing the Isuzu 4BD2 engine rebuild kit.
- Prepare sealing surfaces—deck and head must be flat, clean, and free of residue.
- Pre-lube bearings, use assembly lube where specified, and prime the oil system prior to first start.
- Follow torque sequence/angles exactly and perform a proper break-in to seat rings included in your Isuzu 4BD2 engine rebuild kit.
Performance & Uptime Benefits
- Compression Recovery: The Isuzu 4BD2 engine rebuild kit restores cranking pressure, throttle response, and pulling power.
- Cleaner Operation: New rings, liners, and gaskets reduce blow-by, smoke, and fluid leaks.
- Lower Operating Cost: An Isuzu 4BD2 engine rebuild kit improves fuel efficiency and reduces top-ups.
- Predictable Service Intervals: Durable, OEM-grade parts reset maintenance timelines and boost uptime.
Ordering Steps
- Identify: Confirm 4BD2 model/variant from the engine tag and service documentation.
- Select: Choose a complete Isuzu 4BD2 engine rebuild kit or targeted top/bottom-end component sets.
- Verify: Match piston/liner sizes and bearing grades to measured dimensions.
- Install: Follow spec torque/angle values, lubrication practices, and break-in procedures.























