Generator Belt Idler Pulley 16603-E0031 for Toyota Coaster
16603E0031 - Engine parts
Price Details
Dealer Price ≠ Your Price
Official dealer price is only a benchmark. Your LongTop quote is significantly lower.
| Brand | Longtop Supply Quote | Action |
|---|---|---|
| FAW Toyota | $21.69 | Check Better Price |
| GAC Toyota | $25.07 | Check Better Price |
| Imported Toyota | $23.80 | Check Better Price |
| Lexus | $23.80 | Check Better Price |
Replacements
Alternative OE numbers related to this product.
| Brand | Original OE | Replacement OE |
|---|---|---|
| - | 16603E0031 | 1660378090 |
| - | 16603E0031 | 1660378061 |
| - | 16603E0031 | 1660378060 |
Compatible Models
Vehicle models currently mapped to this OE part.
| # | Brand | Model |
|---|---|---|
| 1 | Toyota | Toyota - General area - COASTER (CHINA) - 201301 - GRB53,TRB53,XZB53 |
| 2 | Toyota | Toyota - General area - Coster: COASTER (CHINA) - 200012 - 201403 - BB5#,RZB5#,TRB53,XZB53 |
| 3 | Toyota | Toyota - General area - Coster: COASTER (CHINA) - 201301 - GRB53,TRB53,XZB53 |
| 4 | Toyota | Toyota - General area - Coster: COASTER - 199301 - 201612 - BB4#,5#,BZB40,50,HZB50,RZB40,50,TRB40,50,XZB40,5 |
| 5 | Toyota | Toyota - General area - Coster: COASTER - 201701 - BB60,BZB60,70,GDB##,HZB60,70,TRB60,70,XZB60,70,80 |
| 6 | Toyota | Toyota - Japan - QUICK DELI/URBAN SUP - 199908 - 201109 - BU28#,LY228,270,RZU280,XZU28#,XKU280 |
| 7 | Toyota | Toyota - Japan - Coster: COASTER - 199301 - 201612 - BB4#,5#,BZB40,50,HDB5#,HZB4#,5#,XZB4#,5 |
| 8 | Toyota | Toyota - Japan - Coster: COASTER - 201701 - GDB1#,60,70,80,XZB60,70,80 |
| 9 | Toyota | Toyota - Japan - Coster: COASTER - 201701 - GDB60,70,80,XZB60,70,80 |
| 10 | Toyota | Toyota - Europe - Coster: COASTER - 199301 - 201612 - BB4#,5#,BZB40,50,HZB50,RZB40,50,TRB40,50,XZB40,5 |
Product Overview
OE 16603-E0031 is the genuine Toyota OEM generator belt idler pulley that drives the accessory belt and turns the accessory mounted on it. It fits COASTER (CHINA) and QUICK DELI/URBAN SUP, built from 1993 to 2017. 3 interchangeable part numbers are listed, including 1660378090, 1660378061 and 1660378060.
Send your OE number or VIN for a wholesale quotation and worldwide shipping.
Technical Specifications
| OE Number | 16603E0031 |
| Part Name | Idler Pulley |
| Brand | Toyota |
| Type | Idler Pulley (Generator Belt Idler) |
| Bore Diameter | 17mm |
OE Cross-Reference
| 1660378090 | Toyota |
| 1660378061 | Toyota |
| 1660378060 | Toyota |
Questions and Answers
Which Toyota or Lexus models and years does 16603-E0031 cover?
16603-E0031 fits COASTER (CHINA) and QUICK DELI/URBAN SUP, built from 1993 to 2017.
What is the cross-reference for 16603-E0031?
3 numbers interchange with 16603-E0031, including 1660378090 (Toyota), 1660378061 (Toyota), 1660378060 (Toyota).
How can I verify that 16603-E0031 is a genuine Toyota part?
A genuine Generator Belt Idler Pulley shows the Toyota number 16603-E0031 on the box label with the country-of-origin marking. On the part itself, the metal carries the supplier’s mark cast or stamped next to Toyota’s own mark, not a separate printed sticker; and the part number is die-stamped or laser-etched into the metal itself rather than printed in ink, and it matches the box label. Documentation is available on request – commercial invoice, packing list and Certificate of Origin.
How many pieces are needed for 16603-E0031?
You get one piece per position – check the quantity required for your application.
Is the genuine part worth it compared with an aftermarket equivalent?
The genuine part differs in ways that show up in service: the OE heat treatment and surface finish help the part resist wear, corrosion and seizing, and the part is machined to OE tolerance, so it mounts and seats without shimming or rework. These are the aftermarket equivalents you may also see quoted.
What documentation comes with an order?
Commercial invoice and packing list accompany every shipment, and a Certificate of Origin can be issued on request; the part number is die-stamped or laser-etched into the metal, so you can match it against the invoice.
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