The WIX Filters 51551 is presented as a heavy-duty spin-on hydraulic filter with high filter efficiency and low flow restriction, rated by users at an average 4.7/5 from 802 reviews. It fits specific vehicle and equipment threads, measures about 3.6 in. diameter and 6.2 in. length, and offers durable canister construction, straightforward installation, and maintenance tips. What are the exact fitments, warranty details, and test-based performance figures—those follow next.
Key Takeaways
- Heavy-duty spin-on design with 3/4-16 thread and compact 3.9×3.9×5.3-inch size fits many hydraulic/engine applications.
- High-efficiency paper media captures particles effectively while maintaining low flow restriction and minimal pressure drop.
- Durable machined exterior and heavy-duty media provide reliable performance in demanding service conditions.
- Easy installation: hand-thread, tighten to specified torque, replace O-ring, and avoid cross-threading for best seal.
- Strong user ratings (4.7/5 from 802 reviews) and available return/warranty policies support purchase confidence.
Product Features and Specifications
The WIX 51551 heavy‑duty spin‑on hydraulic filter presents a compact, serviceable design that targets particle contaminants while minimizing flow restriction.
Readers learn specifications: 3.9 x 3.9 x 5.3 inches, 0.5 lb, 3/4-16 thread.
What about performance? Filter efficiency is emphasized for particle removal, paper media provides targeted capture, linear path reduces pressure drop.
Maintenance tips: inspect at regular intervals, replace per hours or contamination indicators.
Features include OEM part 51551, NSNs 4330-00-073-0371 and 4330-00-434-6584, GTIN 00765809515512.
Practical considerations: check vehicle-specific fit, verify service intervals.
Installation, Durability, and Compatibility
Begin installation by confirming fit and preparing the work area: the WIX 51551 measures 3.9 x 3.9 x 5.3 inches, weighs 0.5 lb (8 oz), and uses a 3/4-16 thread, so verifying vehicle-specific compatibility and clearance around the filter housing avoids cross-threading or interference.
The installation process is straightforward: hand-thread, tighten to specified torque, check seals.
How durable is it? Highly durable, machined exterior, paper media rated for heavy duty service.
How durable is it? Built tough with a machined exterior and heavy‑duty paper media for long service life.
What affects product lifespan? Fluid cleanliness, operating pressure, service intervals.
Practical tip: inspect mounting space, replace O-ring, note torque specs for reliable fit and longevity.
Customer Ratings and Warranty Information
Having confirmed fit, installation, and durability, attention turns to how users rate performance and what protections exist if something goes wrong.
The 51551 averages 4.7/5 from 802 ratings; customer experiences note reliable particle removal, snug 3/4-16 thread fit, and low flow restriction.
Practical considerations: item dimensions 3.9 x 3.9 x 5.3 in, weight 0.5 lb, compatibility with vehicle-specific systems.
Is returns straightforward? Yes — an Amazon.com voluntary 30-day return policy applies to many purchases.
Warranty details are linked on the product page; buyers should verify coverage, claim procedures, and any service intervals before purchase.
Frequently Asked Questions
Can This Filter Be Used for Mobile Hydraulic Equipment Like Excavators?
Yes. The 51551 fits many mobile hydraulic systems including excavators when thread size, dimensions, and hydraulic compatibility match equipment requirements. Review filter specifications (3/4-16, 3.9×5.3 inches) and OEM compatibility before installation.
Is the Filter Recyclable or Made From Recycled Materials?
No — the filter is not advertised as made from recycled materials; its environmental impact centers on disposal. The manufacturer does not detail a recycling process for the paper, metal assembly, or used spin-on units, urging proper waste handling.
What Is the Micron Rating or Filtration Efficiency?
The micron rating is not specified by WIX for the 51551; the reviewer notes typical micron size varies by application. The filtration technology uses paper media creating a linear flow path to trap particle contaminants efficiently.
Are Replacement Filters Available in Multi-Packs or Bulk?
Yes; retailers and distributors offer bulk purchasing options, portrayed as stacked sentinels guarding machinery. He notes multi-packs exist, but urges checking filter compatibility by thread size, OEM number, and vehicle-specific fit before ordering.
Does WIX Offer Technical Support or Installation Guides?
Yes; WIX provides technical resources and installation assistance via its website, manuals, and customer support. The company offers product documentation, fitment guides, and direct help for proper installation and troubleshooting of its filters.
Conclusion
Like a well-tuned compass guiding oil through veins, the WIX 51551 delivers reliable particle removal, low flow restriction, and rugged spin-on construction. Readers are shown clear specs: micron efficiency, thread size, and flow rate compatibility; installation is straightforward, durability tested, vehicle fitment confirmed. Is it worth buying? For systems needing dependable filtration and easy serviceability, yes — measurable performance, user-tested longevity, and a solid warranty make it a practical, trustable choice.
