WAI 17850N Starter
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WAI

WAI 17850N Starter

Brand WAI 17850N
12 12
Design Planetary gear reduction
Family Denso
Power Rating 1
Starter Rotation Counterclockwise (left)
Tooth Quantity 9
Mounting Type Flange
Fits Saab and Subaru · 7 vehicles

100% new construction. Not remanufactured for a fresh replacement solution.

Planetary gear reduction. Helps deliver efficient cranking performance.

Denso family design. Built around a proven starter architecture.

Cross-references BBB Industries 17850, 23300-AA420 and 28100-21050 for the same application. See all 6.

$180.80Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $180.80
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Starter for Subaru and Saab Applications

This WAI starter, part number 17850N, is built for Subaru and Saab applications that use a Denso planetary gear reduction design. It is a 100% new unit, not remanufactured, and is engineered to deliver the amp output needed for modern electrical demands.

  • Planetary gear reduction design for efficient cranking performance
  • 100% new construction, not remanufactured
  • Counterclockwise rotation with 9-tooth engagement
  • Flange mounting type for direct replacement applications
  • Built with proprietary components and processes for long service life

Fitment Details

Fits 2002-2007 Subaru Impreza, N/A. Fits 2005 Saab 9-2X, N/A.

What It Helps Address

  • Slow or weak engine cranking
  • No-start conditions caused by starter failure
  • Electrical load demands that exceed a worn starter’s output
  • Intermittent starting performance from internal wear

Installation Notes

Verify Denso PLGR application details, starter rotation, tooth count, and flange mounting before installation. Confirm the replacement matches the original electrical and mechanical specifications for the vehicle. Part number 17850N is also cross-referenced to BBB Industries 17850 for the same application.

Quality Assurance

WAI starters are manufactured as new units using proprietary components and processes to support consistent performance and service life. Part number 17850N is built to meet the amp output requirements of today’s vehicles.

Related reading

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersNotes
2007SubaruImprezaManual——Denso PLGR
2006SubaruImprezaManual——Denso PLGR
2005Saab9-2X—2.0LH4Denso PLGR
2005SubaruImpreza—2.5LH4Denso PLGR
2004SubaruImpreza—2.5LH4Denso PLGR
2003SubaruImpreza—2.0LH4Denso PLGR
2002SubaruImpreza—2.0LH4Denso PLGR
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 1785023300-AA42028100-21050228000-9270228000-9710944280527140