Genuine Toyota Fuel Filter Assembly 23300-78221 For Dyna/Toyoace XZU314D XZU421 XZU388 N04C S05D J05D Diesel — OEM Complete Filter Housing 86x92.5mm
| OEM Part Number: | 23300-78221 | Part Name: | FILTER ASSY, FUEL / Fuel Filter Assembly |
| Type: | Complete Assembly With Priming Pump Provisions | Outer Diameter: | 86 Mm |
| Height: | 92.5 Mm | Inner Diameter: | 11.5 Mm |
| Weight: | Approx. 0.150 Kg (filter Element) | Engine Compatibility: | Toyota N04C (4.0L), S05D, J05D Diesel |
| Vehicle Compatibility: | Toyota Dyna / Toyoace | Chassis Compatibility: | XZU314D, XZU421, XZU388, XZU30#, 314, 324, 33#, 34#, 354, 368, 378, 50#, 524, 538, 548, 554, 568 |
| Production Years: | 2005–2011 | Condition: | Brand New — 100% Quality Inspected |
| Warranty: | 12 Months | ||
| High Light: | Genuine Toyota fuel filter assembly,Toyota Dyna diesel fuel filter,OEM Toyota fuel filter housing |
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The Fuel Filter Assembly (FILTER ASSY, FUEL) with Genuine Toyota OEM number 23300-78221 is a verified direct-fit replacement for a wide range of Toyota Dyna and Toyoace commercial trucks. Manufactured to Toyota's exacting OEM specifications, this complete fuel filter housing assembly is a critical component of the diesel fuel system.
- OEM Specification — Verified by Genuine Toyota part number 23300-78221
- Precision Dimensions — 86mm outer diameter, 92.5mm height, 11.5mm inner diameter
- Proven Durability — Manufactured to Toyota OEM standards for diesel fuel exposure and continuous engine vibration
- Verified OEM Fitment — Confirmed for Toyota Dyna/Toyoace XZU314D and XZU421 models
- OEM Cross-Reference Verified — Replaces 23300-78220, 23300-78225, and compatible with Blue Print ADT32385
If your fuel filter assembly is failing or clogged, you may experience one or more of the following symptoms:
- Hard Starting / Extended Cranking — Engine takes longer than normal to start
- Loss of Engine Power — Significant reduction in power and acceleration
- Engine Misfires or Stalling — Rough running, misfires, or intermittent stalling
- Poor Fuel Economy — Noticeable decrease in fuel efficiency
- Excessive Exhaust Smoke — Black or white smoke from the exhaust
- Water in Fuel Warning Light — Dashboard indicator illuminates
| Part Number | 23300-78221 |
| Product Name | Fuel Filter Assembly |
| Car Model | Toyota Dyna/Toyoace XZU314D XZU421 XZU388 |
| Engine Model | Toyota N04C S05D J05D |
| Condition | 100% Brand New |
| Material | High-strength aluminum alloy & precision bearings |
| Brand | Model | Chassis / Series | Engine | Years |
|---|---|---|---|---|
| Toyota | Dyna / Toyoace | XZU314D | N04C 4.0L Diesel | 2006/10 - 2011/06 |
| Toyota | Dyna / Toyoace | XZU421 | S05D | 2005/05 - 2006/10 |
| Toyota | Dyna / Toyoace | XZU388, XZU40#, 41#, 42#, 433 | J05D, N04C, S05D | 2004-2006 |
| QC Item | Verification Method |
|---|---|
| Dimensional Accuracy | Precision inspection to verify 86mm OD, 92.5mm height, and 11.5mm ID match OE blueprint specifications |
| Material Composition | Housing and filter element analysis to verify structural integrity and filtration efficiency |
| Leakage Test | 100% pressure testing to guarantee zero fuel leakage under operating conditions |
| Priming Pump Function Test | 100% actuation testing to verify manual primer builds proper pressure |
Pre-Installation Checklist:
- Ensure the engine is cool before starting work
- Depressurize the fuel system before disconnecting fuel lines
- Clean the area around the filter assembly to prevent contamination
- Use clean, high-quality diesel fuel and replace the filter element regularly
- Inspect fuel lines for cracks or damage — replace if necessary
Maintenance Schedule:
- Inspection: During routine fuel filter service (every 20,000-30,000 km)
- Draining: Drain water from the filter assembly when the water in fuel warning light illuminates
- Element Replacement: Every 20,000-30,000 km — regular filter changes are critical for injection pump and injector longevity
- Assembly Replacement: Immediately if failure symptoms appear or if the housing shows signs of cracking or leakage
- Packaging: Each fuel filter assembly is securely packed in Genuine Toyota OEM packaging
- Weight: Approx. 0.150 kg (filter element)
- Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners
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