The Generac 070185E oil filter is a standard OEM filter used in many Generac portable and standby generators. It’s designed to protect your generator’s engine by trapping contaminants and ensuring clean oil circulation. However, finding the exact OEM filter isn’t always convenient or cost-effective.
This guide provides a detailed Generac 070185E oil filter cross reference chart, showing compatible equivalents from other major manufacturers.
Generac Oil Filter 070185E Cross Reference Chart
| OEM / Generac Part | Brand | Equivalent Part Number(s) |
|---|---|---|
| 070185E / 070185ES | WIX | 57145 |
| 070185E | WIX (Kit) | 57145 / WA10353FR |
| 070185 | AC Delco | PF1233 / PF2127 / PF2128 / PF2246 |
| 070185 | AMSOIL | EAO09 |
| 070185 | Baldwin | B33 / B7165 |
| 070185 | Bosch | 72167 |
| 070185 | Fram | PH4967 / PH4968 |
| 070185 | K&N | HP-1003 / SO-1003 |
| 070185 | AutoEdge | AL4967 |
| 070185 | Beck/Arnley | 041-0750 / 041-8066 |
| 070185 | BIG A / Autopro | 92394 / 92395 / 2394 |
| 070185 | PartsMaster | 57145 |
| 070185 | Purolator | L10241 / L14612 |
| 070185 | Mobil 1 | M1-108 / M1-110 |
| 070185 | NAPA Gold | 1348 / 1356 |
| 070185 | Motorcraft | FL816 / FL836 |
| 070185 | STP | S4967 / S4968 |
| 070185 | SuperTech | ST4967 / ST4968 |
| 070185 | Champion | C4967 / C4968 |
| 070185 | Pennzoil | PZ-39 / PZ-37 |
| 070185 | Pro-Tec | 164 / 165 |
| 070185 | Fleetguard | LF653 / LF3591 |
| 070185 | Donaldson | P550162 |
| 070185 | Ryco | Z79A / Z436 |
| 070185 | Luber-Finer | PH2835 / PH3614 |
| 070185 | MicroGard | MGL4967 / MGL4968 |
| 070185 | Prime Guard | POF4967 / POF4968 |
| 070185 | Carquest | 85348 / 85356 |
| 070185 | Service Pro | SP4967 / SP4968 |
| 070185 | Hastings | LF240 / LF240F |
Related Generac Portable Generator Oil Type(Recommended by Manufacturer)
Best Equivalent Generac Oil Filter 070185E Filters
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1. WIX 57145
- Thread Size: 3/4-16
- Height: ~3.402 in
- Anti-Drain Back Valve included
- Bypass valve setting roughly 8–11 psi
- Efficient media, good balance of price and reliability
- Thread: 3/4-16
- Outer diameter: ~3 1/32 in
- Overall length: ~2 5/16 in
- Micron rating ~23 nominal
- Built to resist high-pressure fluctuations and long drain intervals
- Designed for full-flow applications
- Durable construction, good filtration capacity
- Compatible with many small engines and generators
- High-performance, synthetic media
- Strong anti-drainback valve
- Often offers cleaner flow and stable pressure under load.
- Reliable OE aftermarket brand
- Good media life and structural integrity
- Typically matched to small engines and light-duty generators.
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Tips for Using Cross Reference Filters
Before you install a replacement filter, here are some key things to check:
1. Thread Pitch and Gasket Size
Ensure the replacement filter matches the OEM thread (3/4″-16 or M20x1.5, depending on model) and gasket diameter.
Incorrect threads can cause oil leaks or fitting issues.
2. Bypass Valve Rating
Filters differ in their bypass valve pressure. Too high or too low can affect oil pressure. Choose filters close to the OEM specifications.
3. Filter Height and Diameter
Some aftermarket filters may be slightly longer or shorter than the original. Confirm you have enough clearance around the engine mount.
4. Warranty Considerations
Using non-OEM filters may void warranty coverage in some cases. Always keep your maintenance receipts and records.
Related Purolator Oil Filter Cross Reference Chart(For ALL Brands)
Common Issues When Replacing Generac Oil Filters
- Incorrect threading: Even if the diameter looks correct, thread pitch differences can prevent proper sealing.
- Filter not seating properly: Some users report that filters with a different gasket placement may not seal on certain Generac engines.
- Overtightening: Hand-tighten the filter ¾ turn after gasket contact, over-torquing can damage the gasket or cause oil leaks.
- Low oil pressure warning: This could occur if the filter’s bypass valve or anti-drainback valve operates differently from the OEM version.
Always compare the new filter’s specifications to the original Generac 070185E before installation.
Maintenance Tips for Generac Generators
1. Change Oil and Filter Regularly
Generac recommends changing oil and the filter every 100–200 hours of operation or annually, whichever comes first.
2. Use the Right Oil Type
For most Generac air-cooled engines, SAE 5W-30 synthetic oil is recommended for year-round use.
3. Inspect for Leaks
After replacing the filter, run the generator for a few minutes and check for leaks around the mounting base.
4. Replace Air and Spark Plug Together
Doing a complete tune-up (oil, air, and spark plug) ensures peak engine efficiency and longer service life.
Related Cross Reference Chart for Oil Filters(For ALL Brands)
Final words
The Generac Oil Filter 070185E is an essential part of your generator’s maintenance routine. While OEM filters are ideal, several trusted aftermarket options offer equal performance and availability. Brands like WIX (57145), Baldwin (B7165), AC Delco (PF2127), and AMSOIL (EAO09) are among the most reliable equivalents.
Always confirm the filter’s thread, gasket size, and bypass specifications before installation. A properly matched oil filter ensures your generator runs smoothly, maintains oil pressure, and protects the engine from wear.
