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Pioneer Cables 747033 Automatic Transmission Modulator Valve
| Brand | Pioneer Cables 747033 |
|---|---|
| Fits | Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac · 31 vehicles |
Exact fit replacement. No-compromise automatic transmission modulator valve.
Cross-references Quality-Built 17782, Walker Exhaust 41945 and 66820X for the same application. See all 11.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Automatic Transmission Modulator Valve Overview
Pioneer Cables 747033 is an automatic transmission modulator valve built as an exact-fit replacement for select GM applications. It is made for drivers restoring proper transmission vacuum control on vehicles such as the Buick Century, Cadillac DeVille, and Oldsmobile 98.
This part cross-references Quality-Built 17782 for the same application.
Key Features
- Exact-fit replacement from Pioneer Transmission Components
- Automatic transmission modulator valve for vacuum-controlled transmission operation
- Direct replacement for select 1982-1986 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac applications
- Part number 747033 for catalog and interchange lookup
- Cross-reference support for common aftermarket listings
Detailed Description
Pioneer Cables 747033 is an automatic transmission modulator valve designed for exact-fit replacement in specific GM vehicles. It is listed for 1984-1986 Buick Century, 1986 Buick LeSabre, 1986 Buick Riviera, 1986 Cadillac DeVille, 1986 Cadillac Eldorado, 1986 Cadillac Fleetwood, 1986 Cadillac Seville, 1986 Oldsmobile 98, 1986 Oldsmobile Delta 88, 1986 Oldsmobile Toronado, 1984-1985 Pontiac 6000, 1984 Chevrolet Celebrity, and 1982 GMC P2500. For buyers searching by application, this is a direct-fit automatic transmission modulator valve for Buick Century and Cadillac DeVille service needs, as well as other listed GM models.
Common Uses
- Restores transmission vacuum modulation control
- Addresses harsh, delayed, or inconsistent shift behavior tied to a worn modulator valve
- Replaces a leaking or failed transmission modulator valve
- Supports drivability repair on older GM automatic transmissions
Installation Notes
Verify the transmission code and vehicle application before ordering, especially on 1986 Cadillac models with 1st design notes and the listed 6AA, 6AC, 6AD, 6AF, 6AM, and 6AR references. Confirm the existing modulator style and vacuum connection before installation. Use clean transmission service practices and inspect related vacuum lines and seals during replacement.
Quality Assurance
Pioneer Transmission Components markets this part as an exact-fit replacement component, built to match the original application requirements for the listed vehicles. Part number 747033 is supported by interchange references for easier catalog matching.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 1986 | Buick | Century | 3.8L | V6 | — |
| 1986 | Buick | Electra | 3.8L | V6 | — |
| 1986 | Buick | LeSabre | 3.8L | V6 | — |
| 1986 | Buick | LeSabre | 3.0L | V6 | — |
| 1986 | Buick | Riviera | 3.8L | V6 | — |
| 1986 | Cadillac | DeVille | 4.1L | V8 | 1st Design; Also Fits 6AC, 6AF, 6AM, 6AR |
| 1986 | Cadillac | Eldorado | — | — | 1st Design; Also Fits 6AA, 6AD |
| 1986 | Cadillac | Fleetwood | 4.1L | V8 | 1st Design; Also Fits 6AC, 6AF, 6AM, 6AR |
| 1986 | Cadillac | Seville | — | — | 1st Design; Also Fits 6AA, 6AD |
| 1986 | Oldsmobile | 98 | 3.8L | V6 | — |
| 1986 | Oldsmobile | Delta 88 | 3.8L | V6 | — |
| 1986 | Oldsmobile | Delta 88 | 3.0L | V6 | — |
| 1986 | Oldsmobile | Toronado | 3.8L | V6 | — |
| 1985 | Buick | Century | 3.8L | V6 | — |
| 1985 | Buick | Century | 3.0L | V6 | — |
| 1985 | Pontiac | 6000 | 4.3L | V6 | — |
| 1985 | Pontiac | 6000 | 2.8L | V6 | — |
| 1984 | Buick | Century | 4.3L | V6 | — |
| 1984 | Buick | Century | 3.8L | V6 | — |
| 1984 | Buick | Century | 3.0L | V6 | — |
| 1984 | Buick | Century | 2.8L | V6 | — |
| 1984 | Chevrolet | Celebrity | 4.3L | V6 | — |
| 1984 | Chevrolet | Celebrity | 2.8L | V6 | — |
| 1984 | Pontiac | 6000 | 4.3L | V6 | — |
| 1984 | Pontiac | 6000 | 2.8L | V6 | — |
| 1982 | GMC | P2500 | 6.2L | V8 | — |
| 1982 | GMC | P2500 | 6.2L | V8 | ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR |
| 1982 | GMC | P2500 | 5.7L | V8 | — |
| 1982 | GMC | P2500 | 5.7L | V8 | ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR |
| 1982 | GMC | P2500 | 4.8L | L6 | — |
| 1982 | GMC | P2500 | 4.8L | L6 | ADJ 12.5-18 - EDA 1.75 - Red Stripe - w/o EGR |
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