Mercruiser 4.3 / 5.0 / 5.7L TBI Fuel Injector Cleaning & Flow Testing

The Rochester 17104288-ACR is a TBI marine fuel injector used in MerCruiser TBI/EFI throttle-body engines: 4.3L V6, 5.0L and 5.7L V8 Alpha/Bravo (1998-2001). We ultrasonic-clean and flow-test injectors like this one in our shop, then send back before-and-after data so you know exactly what you're getting.

Manufacturer	Rochester
Part number	17104288-ACR
Type	TBI marine

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Our measured results

These are the actual before-and-after numbers from our flow bench for the Rochester 17104288-ACR — not published estimates.

Tested in our shop	2 injector(s) @ 15.0 psi
Measured coil (avg)	1.7 Ω
10s open flow (avg)	75.0 → 75.5 ml (+0.7%)
60s pulsed flow (avg)	48.0 → 48.0 ml
Leak test after cleaning	2/2 PASS

Also known as / cross-references

The Rochester 17104288-ACR is interchangeable with or cross-references to these part numbers:

852956A1 (MerCruiser kit)3855182 (Volvo/OMC)3857398

What vehicles use the Rochester 17104288-ACR?

MerCruiser TBI/EFI throttle-body engines: 4.3L V6, 5.0L and 5.7L V8 Alpha/Bravo (1998-2001)

How we service it

Every injector gets ultrasonic cleaning, backflushing, before-and-after flow testing (static and dynamic), leak testing, spray-pattern inspection, and new O-rings and micro-filter baskets where available — plus a detailed Injector Performance Report. Round-trip USPS shipping is $15 flat.

Frequently asked questions

What vehicles use the Rochester 17104288-ACR injector?

The Rochester 17104288-ACR is used in MerCruiser TBI/EFI throttle-body engines: 4.3L V6, 5.0L and 5.7L V8 Alpha/Bravo (1998-2001).

Can you clean and test a 17104288-ACR injector?

Yes. We ultrasonic-clean, backflush, and flow-test the Rochester 17104288-ACR on our bench, including before-and-after open and pulsed flow, leak testing, and spray-pattern inspection, with new O-rings where available.

What did the 17104288-ACR flow at?

On our bench, 2 17104288-ACR injectors averaged 75.0 ml open flow before cleaning and 75.5 ml after, tested at 15.0 psi.

How much does it cost?

Standard MPFI top-feed injectors are $30 each; side-feed, GDI, TBI and specialty injectors are $35 each. Round-trip shipping is $15 flat, 4-injector minimum.

How do I send them in?

Start an order on our Get Started page, ship your injectors to our Weymouth, MA shop, and we return them cleaned, tested, and documented.

Send in your 17104288-ACR injectors

Mail-in cleaning and flow testing with a full before/after report. 4-injector minimum, $15 flat round-trip shipping.

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