Air Cleaner Housing Assembly 8981045054 8-98104-505-4 For ISUZU D-MAX TFR TFS 2012 2013 2014 2015 4JJ1 4JK1 — OEM-Grade Aftermarket Air Filter Box, Complete Housing, 6-Month Warranty

The Air Cleaner Housing Assembly with OEM references 8981045054 / 8-98104-505-4 is a verified replacement air filter box for ISUZU D-MAX (TFR / TFS) pickups from the 2012–2015 model years, covering both 4JJ1 (3.0L) and 4JK1 (2.5L) common-rail diesel engines. This housing is the complete enclosure that holds the air filter element, seals the intake tract from unfiltered air, and connects the filter to the engine's intake ducting.

The part is supplied as an OEM-grade aftermarket assembly manufactured in China, with a reference 6-month warranty and actual product dimensions of 39 × 35 × 31.5 cm (packaging: 30.5 × 29.7 × 34 cm). It is the direct functional counterpart to ISUZU factory reference 8-98104-505-5, which appears alongside the -4 suffix in multiple ISUZU parts catalogs for the same D-MAX air cleaner application. The "-CH" suffix (8-98104505-CH) is also used by some Chinese suppliers to denote the China aftermarket version of this housing, with expanded coverage listed as 2013–2020 for certain applications.

• OE Reference Group Verified: 8-98104-505-4 is confirmed as the D-MAX 2012–2016 air filter box OE number by Spanish supplier 4componentes ("CAJA DE FILTRO DE AIRE ISUZU P/U D-MAX 12-16").
• Interchange Reference Verified: 8-98104-505-5 is listed in ISUZU parts catalogs as "ENSEMBLE FILTRE; AIR" for D-MAX 2012+ applications, confirming it as a functionally related suffix within the same housing family.
• Vehicle Coverage Verified: Confirmed for ISUZU D-MAX 2012–2015, with catalog coverage extending to 2012–2016 (4componentes) and 2013–2020 (Chinese aftermarket "-CH" version).
• Engine Coverage Verified: 4JJ1 (3.0L) and 4JK1 (2.5L) common-rail diesel engines — confirmed by German supplier listing ("Motorenmodell: 4JJ1") and platform parts catalogs.
• Dimensions Verified: Actual size 39 × 35 × 31.5 cm; packaging size 30.5 × 29.7 × 34 cm — confirmed by Guangzhou Yimi Automotive Parts factory data.
• Warranty Verified: 6-month quality guarantee — confirmed by Chinese factory supplier listing.
• Market Variant Verified: 8-98104505-CH denotes the China aftermarket version of this housing, with Arabic-market listing confirming D-MAX 2013–2020 coverage.
• Drive-Type Coverage Verified: Greek supplier lists 8-98104-505-5 for "ISUZU DMAX '12- 4WD", confirming 4WD application; confirm 4x2 against VIN where required.

• Cracked or damaged housing body: Impact damage, engine vibration, or heat cycling can crack the plastic housing, allowing unfiltered air to bypass the filter element and enter the engine.
• Broken mounting tabs or brackets: A housing that no longer mounts securely can vibrate, rub against adjacent components, and develop leaks or noise.
• Damaged or missing lid clips: Broken clips prevent the cover from sealing properly, creating an air leak path around the filter element.
• Warped sealing surface: Heat exposure can distort the housing-to-cover or housing-to-duct mating surface, preventing a tight seal even with a new filter.
• Air leak or whistling noise from the intake: A cracked housing or failed seal produces a whistling or hissing sound under acceleration as unfiltered air is drawn in.
• Dust ingress into the intake tract: Visible dust or dirt downstream of the filter element indicates the housing is no longer sealing — a direct path to accelerated engine wear.
• MAF sensor contamination or drivability codes: Unfiltered air entering through a compromised housing can contaminate the mass airflow sensor, causing rough running, poor fuel economy, or diagnostic trouble codes.

• Housing vs. filter element is the first check: This is the air cleaner housing (box), not the filter element. D-MAX 2012+ filter elements are typically 8-98140-265-0 or 8-98140-266-0 and are ordered separately. Confirm the customer's required scope before quoting.
• 8-98104-505-4 vs. 8-98104-505-5: Both suffixes appear in D-MAX 2012+ air cleaner catalogs. The -5 is the more commonly listed ISUZU catalog reference for "ENSEMBLE FILTRE; AIR". The -4 is confirmed as the OE number for D-MAX 12–16 by an independent European supplier. Treat them as functionally interchangeable for this application, but read the original housing marking where possible.
• 4x2 vs. 4x4: The Greek supplier explicitly lists the -505-5 housing for DMAX '12- 4WD. While the same housing family is likely used across drive types, confirm the vehicle's drive configuration and VIN before ordering, especially for fleet applications.
• China aftermarket "-CH" suffix: This denotes the China-produced aftermarket version of the housing, with coverage listed as 2013–2020 in some markets. This may reflect broader production compatibility, but the core confirmed application for the OEM-reference group remains 2012–2015.
• Packaging contents vary: Some suppliers include the housing body only; others may include the lid, clips, or seals. Clarify the exact package contents at inquiry — a housing without clips or seals cannot be installed and returned to service.

1. Confirm scope first: Verify that the replacement is the housing assembly, not a filter element. Confirm whether clips, seals, and mounting hardware are included.
2. Disconnect the MAF sensor and intake duct: Carefully unplug the MAF sensor connector and loosen the hose clamp securing the intake duct to the housing. Do not pull on the MAF sensor wires.
3. Remove the old housing: Unbolt or release the housing from its mounting points. Note the orientation of the intake inlet and outlet ports.
4. Transfer components: If the original housing carries a MAF sensor grommet, mounting brackets, or drain valve, transfer them to the new housing.
5. Install the new housing: Position the 8981045054 housing onto its mounts. Tighten fasteners to the workshop manual specification — do not over-torque plastic mounting points.
6. Install the filter element: Seat the correct filter element (8-98140-265-0 / 8-98140-266-0 — confirm application) into the housing. Ensure the element is fully seated and the sealing lip is not folded or pinched.
7. Close and secure the lid: Engage all clips or latches. A partially latched lid is a common cause of unfiltered air bypass.
8. Reconnect the intake duct and MAF sensor: Tighten the hose clamp and reconnect the MAF sensor connector. Verify that the duct is fully seated and not twisted.
9. Inspect for gaps: With the housing closed, visually inspect the perimeter seal for any gap or misalignment. A whistling noise under acceleration indicates a leak.
10. Road test: Drive the vehicle and listen for intake noise or whistling. Confirm no drivability codes related to MAF or lean condition are set.

• Inspect the housing and lid at every air filter service or every 20,000–30,000 km — check for cracks, broken clips, or a warped sealing surface.
• Replace the filter element according to the ISUZU maintenance schedule or more frequently in dusty environments.
• Clean the housing interior with a damp cloth when replacing the filter — do not use compressed air directly on the MAF sensor.
• Replace the housing if the body is cracked, the sealing surface is warped, or the clips no longer hold the lid securely.

• Standard packing: Neutral carton. Packaging size reference 30.5 × 29.7 × 34 cm.
• Package contents: 1 × Air Cleaner Housing Assembly. Filter element, clips, seals, and mounting hardware may or may not be included — confirm exact package contents at inquiry.
• Set options: Housing only / housing + filter element kit / housing + clips/seals — specify at inquiry.
• Minimum order: Sample accepted; bulk quantity pricing available.
• Suitable for: ISUZU D-MAX intake and air filter service shops, 4JJ1/4JK1 engine maintenance providers, fleet maintenance departments, spare parts distributors, and export wholesalers serving Southeast Asia, the Middle East, Africa, and Latin America.
• Related parts available: Air filter element (8-98140-265-0 / 8-98140-266-0), MAF sensor, intake duct, housing clips and seals, and complete D-MAX intake system kits.