Manual Window Regulator 8944557000 8-94455700-0 For ISUZU TFR TFS 4ZD1 (1988) — Rear Right (RH), Manual Crank, OEM-Spec, ISO 9001

8944557000 8-94455700-0 Manual Window Regulator for ISUZU TFR TFS 4ZD1 1988 — Rear Right, Manual Crank,  12-Month Warranty

✅ Product Description

The Manual Window Regulator with OEM references 8944557000 / 8-94455700-0 is a verified direct-fit replacement for the rear right (RH) door of the ISUZU TFR / TFS pickup equipped with the 4ZD1 (2.6L petrol) engine, specifically covering the 1988 model year. This is a manual-crank window regulator, not an electric/power unit — it uses a hand crank mechanism to raise and lower the door glass.

The regulator is the mechanical linkage that supports the window glass and translates the rotary motion of the window crank into vertical glass travel. It consists of a metal and plastic assembly with a sector gear, lifting arm, and guide mechanism. , based OEM-specification supplier with ISO 9001 certification and over 40 years of experience in window regulator production. Each unit is lubricated before shipment to reduce initial wear and ensure smooth operation.

• ✅ Position & Type Verified: Rear Right (RH), Manual — confirmed by  product page (“Position - Bag højre” / “Manuel/Elektrisk - Manuel”), Opel EPC (“Heber, zsb., fenster, rechts” / GM 94455700), and multiple language portals (Hebrew “אחורי ימני”, Greek “πίσω δεξιά”, Portuguese “Traseiro Direito”, Danish “Bag højre manuel”).-8-18

• ✅ Vehicle & Engine Coverage Verified: ISUZU TFR / TFS 4ZD1, 1988 model year — confirmed by(“MODEL - TFR”, “ÅR - 1988-1988”, “Applikationer Isuzu TFR 1988”) and Yimi/Ecer (“ISUZU TFR TFS 4ZD1 REGULATOR WIND R 8944557000”).-1-8

• ✅ OEM Cross-Reference Verified: GM 94455700, Opel 43 02 179 — confirmed by Opel EPC Online for the Campo (TF0/TF1) platform. JAFC lists HU-IZ5223M-RR for Opel Campo / Bedford Brava / TFR / TFS with OEM 8944557000 / 8944557010.-18

• ✅ Factory / Associated Reference Verified: 8-94455700-1 (factory number) and 6204200D (companion reference) — confirmed by Ecer German and Polish portals.

• ✅ Material & Build Verified: Metal & Plastic construction; each unit is lubricated before shipment; ISO 9001 certified — confirmed by product data.-8
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• ✅ Packaging Dimensions Verified: 57 × 45 × 6.5 cm (packaging size) — confirmed by Ecer German listing.

✅ [Failure Symptoms — When to Replace]

• Window crank spins without moving the glass: The most common failure — the sector gear teeth are stripped or the lifting arm has disengaged from the glass carrier, so the crank rotates freely but the window stays in place.

• Window glass drops suddenly or will not stay up: A worn or broken lifting arm or regulator pivot allows the glass to fall into the door under its own weight.

• Grinding or clicking noise when cranking: Worn gear teeth or a dry/binding pivot produces audible mechanical noise during operation.

• Stiff or jammed crank operation: Corrosion, lack of lubrication, or a bent guide rail increases cranking effort to the point of binding.

• Window tracks crooked or binds in the run channel: A bent regulator arm or worn guide roller causes the glass to tilt and stick as it travels up or down.

• Visible broken or missing regulator components: Cracked plastic guides, missing rollers, or a bent sector gear require replacement of the regulator assembly.

⚠️ Consequence of Ignoring Symptoms: A failed manual window regulator leaves the window stuck in the closed or open position. If stuck open, the vehicle interior is exposed to weather, dust, and theft risk. Continued cranking against a jammed mechanism can also damage the window crank handle, door trim, or glass carrier. On a working TFR pickup, a non-functional rear window directly reduces the vehicle's utility and security.

✅ Vehicle & Cross-Platform Compatibility

Primary Confirmed Applications:

⚠️ Important Fitment Notes:

• Manual only: This is the manual crank regulator. The electric/power window regulator for the same TFR platform uses a different part number and includes a motor and wiring interface. Do not order this part for a power-window vehicle.

• Rear Right only: This is the rear right door regulator. The rear left uses 8944557010 / 8-94455701-0. Front door regulators use different numbers entirely (e.g., 8970935250 for front right power, 8970125350 for front right manual 1993). Do not interchange front vs. rear or left vs. right.-3

• 1988 model year focus: listing explicitly covers 1988 for the TFR 4ZD1. The TFR platform spans multiple years and facelifts — confirm the vehicle’s exact year and VIN before ordering, especially for 1989+ applications that may use a superseded or different regulator.

• Cross-brand coverage: The same regulator is referenced for Opel Campo and Bedford Brava (GM 94455700 / Opel 43 02 179), making it a cross-brand SKU for distributors serving both ISUZU and GM/Opel light commercial vehicles.-18

✅ Features & Benefits

✅ Quality Control & Verification

Because this regulator exists in manual and electric variants, and in front/rear/left/right positions, confirming the physical form (crank provision, no motor), position, and gear engagement on the first sample is recommended before bulk commitment.

✅ Installation & Maintenance Recommendations

⚠️ IMPORTANT: Door trim removal and window regulator replacement require care to avoid breaking clips and damaging the glass or door frame. Always refer to the ISUZU TFR workshop manual or a trim removal guide for the specific model. Improper installation can result in glass misalignment, water leaks, or regulator binding.

Installation Guidelines (Reference Only):

1. Confirm the required part first: Verify that the original regulator is manual (crank, no motor) and is the rear right unit. Compare the crank provision and guide arm layout to the replacement.

2. Remove the door trim panel: Use a plastic trim tool to release the perimeter clips. Disconnect any manual window crank handle (remove the retaining screw or clip).

3. Remove the water shield / moisture barrier: Carefully peel back the plastic moisture barrier to access the regulator mechanism. Do not tear it — it must be reseated during reassembly.

4. Remove the glass: Lower the window until the glass-to-regulator attachment bolts are visible through the access holes. Support the glass with suction cups or tape, then unbolt the glass carrier from the regulator arm.

5. Remove the old regulator: Unbolt the regulator from the door inner panel (typically 3–4 bolts). Guide the regulator arm out through the largest access opening.

6. Transfer or install the new regulator: Position the 8944557000 / 8-94455700-0 regulator in the door and secure the mounting bolts. Do not fully tighten until the glass is aligned.

7. Reattach the glass: Bolt the glass carrier to the new regulator arm. Check glass alignment in the run channel before final tightening.

8. Test operation: Crank the window through its full travel range. Confirm smooth operation, correct glass tracking, and no binding or unusual noise.

9. Reseal the moisture barrier and reinstall trim: Reseat the moisture barrier with butyl tape or sealant. Reinstall the door trim panel and crank handle.

10. Road test: Drive the vehicle and listen for rattles or wind noise from the door. Verify that the window remains in position over bumps.

Maintenance Schedule:

• Lubricate the regulator mechanism (sector gear and pivot points) every 1–2 years or if crank effort increases — use a white lithium grease or silicone lubricant compatible with plastic and metal.

• Inspect the window run channel for dirt or hardening — a dry or dirty channel increases regulator load and accelerates wear.

• Avoid forcing the crank if the window binds — forcing can strip the sector gear or bend the lifting arm.

• Check the glass carrier bolts for tightness if the window rattles or tilts during operation.

✅ Packaging & Supply

• Standard packing: Polybag or box; solid box + master carton available. Packaging dimensions: 57 × 45 × 6.5 cm (reference).

• Package contents: 1 × Manual Window Regulator (Rear Right) . Crank handle, mounting bolts, and glass carrier hardware may or may not be included — confirm exact package contents at inquiry.

• Set options: Single regulator / rear RH + LH pair (8944557000 + 8944557010) — specify at inquiry.

• Suitable for: ISUZU TFR/TFS interior and window repair shops, Opel Campo / Bedford Brava service providers, light commercial fleet maintenance departments, spare parts distributors, and export wholesalers serving Southeast Asia, the Middle East, Africa, and Latin America.

• Related parts available: Rear left manual regulator (8944557010 / 8-94455701-0), front door regulators, window crank handles, glass run channels, and door trim clips.