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Baldwin PA631 Air Filter
Overview of Baldwin PA631 Engine Air Filter
The Baldwin PA631 engine air filter is designed for reliable air filtration in select Buick, Cadillac, Chevrolet, and Pontiac vehicles. Engineered to meet OEM specifications, this filter supports optimal engine performance by maintaining clean airflow.
- Compatible with Buick, Cadillac, Chevrolet, and Pontiac models including Bel Air, Bonneville, Catalina, DeVille, Eldorado, Grand Prix, Impala, LeMans, and Riviera
- Dimensions: Height 2 3/16 inches (55.6 mm)
- Inside Diameter: 14 15/16 inches (379.4 mm)
- Outside Diameters: 17 5/16 inches (439.7 mm) and 18 5/16 inches (465.1 mm)
- Flange type design for secure fitment
- Replaces GMC part number 6421030
Detailed Product Description
The Baldwin PA631 engine air filter is specifically designed to provide effective filtration for air entering the engine intake system. Its precise dimensions, including a height of 2 3/16 inches and dual outside diameters, ensure a proper seal and fit within the air intake housing. The flange design aids in secure installation and prevents unfiltered air bypass. This filter is compatible with a range of classic and modern vehicles from Buick, Cadillac, Chevrolet, and Pontiac, such as the Chevrolet Impala and Pontiac Grand Prix, making it a suitable replacement for the original equipment filter.
Applications and Problem Solving
- Prevents engine damage caused by dust and debris entering the intake system
- Helps maintain engine efficiency by ensuring clean airflow
- Reduces the risk of clogged fuel injectors and spark plugs
- Supports consistent engine performance and fuel economy
- Replaces worn or damaged air filters to restore proper filtration
Installation Notes and Tips
- Verify compatibility with your vehicle’s make and model before installation
- Ensure the flange seats properly to avoid air leaks
- Inspect the air filter housing for debris before installing the new filter
- Replace the filter at regular service intervals as recommended by the vehicle manufacturer
Quality Assurance and Warranty
Baldwin filters are manufactured to meet industry standards for filtration efficiency and durability. The PA631 engine air filter is built to provide consistent performance under normal operating conditions. While specific warranty details may vary, Baldwin typically offers coverage against manufacturing defects. Consult product documentation or authorized sources for exact warranty terms.
| Brand | Baldwin |
| Part Number | PA631 |
| Fits | "Buick, Cadillac, Chevrolet, Oldsmobile, Pontiac Automotive" |
| Height | 2 3/16 |
| Height (mm) | 55.6 |
| Inside Diameter 1 | 14 15/16 |
| Inside Diameter 1 (mm) | 379.4 |
| Outside Diameter 1 | 17 5/16 |
| Outside Diameter 1 (mm) | 439.7 |
| Outside Diameter 2 | 18 5/16 |
| Outside Diameter 2 (mm) | 465.1 |
| Remark 1 | Flange |
| Replaces | GMC 6421030 |
This part fits 39 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1965 | Buick | Riviera | 6.6L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Buick | Riviera | 7.0L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Pontiac | Bonneville | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Pontiac | Bonneville | 6.9L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Pontiac | Catalina | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Pontiac | Catalina | 6.9L | V8 | N/A | |
| 1965 | Pontiac | Grand Prix | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1965 | Pontiac | Grand Prix | 6.9L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1964 | Chevrolet | Bel Air | 6.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1964 | Chevrolet | Impala | 6.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1964 | Pontiac | Bonneville | 6.9L | V8 | N/A | |
| 1964 | Pontiac | Catalina | 6.9L | V8 | N/A | |
| 1964 | Pontiac | Grand Prix | 6.9L | V8 | N/A | |
| 1963 | Chevrolet | Bel Air | 6.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1963 | Chevrolet | Impala | 6.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1963 | Pontiac | Bonneville | 6.4L | V8 | N/A | |
| 1963 | Pontiac | Bonneville | 6.9L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1963 | Pontiac | Catalina | 6.4L | V8 | N/A | |
| 1963 | Pontiac | Catalina | 6.9L | V8 | N/A | |
| 1963 | Pontiac | Grand Prix | 6.4L | V8 | N/A | |
| 1963 | Pontiac | Grand Prix | 6.9L | V8 | N/A | |
| 1963 | Pontiac | LeMans | 5.3L | V8 | N/A | |
| 1962 | Pontiac | Bonneville | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1962 | Pontiac | Catalina | 6.4L | V8 | N/A | |
| 1962 | Pontiac | Grand Prix | 6.4L | V8 | N/A | |
| 1961 | Chevrolet | Bel Air | 5.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1961 | Pontiac | Bonneville | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1961 | Pontiac | Catalina | 6.4L | V8 | N/A | |
| 1960 | Cadillac | DeVille | 6.4L | V8 | N/A | |
| 1960 | Cadillac | Eldorado | 6.4L | V8 | N/A | |
| 1960 | Chevrolet | Bel Air | 5.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1960 | Chevrolet | Impala | 5.7L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1960 | Pontiac | Bonneville | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1960 | Pontiac | Catalina | 6.4L | V8 | N/A | |
| 1959 | Cadillac | DeVille | 6.4L | V8 | N/A | |
| 1959 | Cadillac | Eldorado | 6.4L | V8 | N/A | |
| 1959 | Pontiac | Bonneville | 6.4L | V8 | N/A | 18 5/16 Inch Outer Diameter |
| 1959 | Pontiac | Catalina | 6.4L | V8 | N/A | |
| 1958 | Cadillac | Eldorado | 6.0L | V8 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.