GM 5.7L 350 TBI Truck (High-Flow) Fuel Injector Cleaning & Flow Testing

The Rochester 5235206*RPD is a TBI (throttle body) fuel injector used in GM 5.7L (350) TBI trucks and vans (1986-1995). High-flow yellow/brown variant, the so-called police-package injector for the Model 220 throttle body.. 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	5235206*RPD
Type	TBI (throttle body)
	65 lb/hr

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Our measured results

These are the actual before-and-after numbers from our flow bench for the Rochester 5235206*RPD — not published estimates.

Tested in our shop	2 injector(s) @ 15.0 psi
Measured coil (avg)	1.6 Ω
10s open flow (avg)	91.5 → 94.0 ml (+2.7%)
60s pulsed flow (avg)	62.5 → 62.5 ml
Leak test after cleaning	2/2 PASS

Also known as / cross-references

The Rochester 5235206*RPD is interchangeable with or cross-references to these part numbers:

17112493171117742517030

What vehicles use the Rochester 5235206*RPD?

GM 5.7L (350) TBI trucks and vans (1986-1995). High-flow yellow/brown variant, the so-called police-package injector for the Model 220 throttle body.

How we service the Rochester 5235206*RPD

Every TBI (throttle body) Rochester 5235206*RPD we take in gets the full bench treatment, tested at 15 psi: ultrasonic cleaning, backflushing, before-and-after open and pulsed flow testing, leak testing, spray-pattern inspection, and new O-rings and micro-filter baskets where available. You get back a detailed Injector Performance Report with the actual before-and-after numbers for your own set, and round-trip USPS shipping is $15 flat.

Frequently asked questions

What vehicles use the Rochester 5235206*RPD injector?

The Rochester 5235206*RPD is used in GM 5.7L (350) TBI trucks and vans (1986-1995). High-flow yellow/brown variant, the so-called police-package injector for the Model 220 throttle body..

Can you clean and test a 5235206*RPD injector?

Yes. We ultrasonic-clean, backflush, and flow-test the Rochester 5235206*RPD 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 5235206*RPD flow at?

On our bench, 2 5235206*RPD injectors averaged 91.5 ml open flow before cleaning and 94.0 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, 2-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 5235206*RPD injectors

Mail-in cleaning and flow testing with a full before/after report. 2-injector minimum, $15 flat round-trip shipping.

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