Donaldson P550777 Reliable Engine Protection
First and foremost, the Donaldson P550777 oil filter provides a wide selection of premium filter media to deliver consistent and effective protection for your engine. As a spin-on bypass filter, it maintains stable operation across all working conditions, and additionally, it keeps oil flow smooth and reliable. Notably, this design directly shields critical engine components from harmful contaminants, reducing wear and extending component lifespan.
Flexible Solutions for Customers
In addition, we offer flexible options for both end users and distributors. We customize production according to your specific demands, so you can achieve more stable equipment performance. Furthermore, these tailored solutions help distributors gain stronger price advantages in local markets. Moreover, we provide dedicated support to ensure seamless integration with your existing supply chain, ultimately boosting operational efficiency.
Quality Control Donaldson P550777 Filter
Strict Production Process
To begin with, we produce every oil filter under a rigorous quality control system to deliver reliable and consistent performance. Our technicians fully test the collapse burst pressure to secure structural strength up to 10.3 bar, so the filter resists deformation and failure under pressure. Additionally, each unit undergoes initial flow testing to confirm optimal oil circulation from the first use.
Comprehensive Performance Checks
Moreover, our team carefully inspects sealing performance, filter media durability, and overall assembly. These checks prevent oil leakage and sustain stable filtration efficiency throughout service life. Furthermore, we conduct final pressure testing to validate long-term reliability, and our strict quality management ensures each filter meets high performance and safety standards.
Dimensions and Specifications
First, the P550777 features precise dimensions for seamless installation: Outer Diameter: 118 mm (4.65 inch) — Thread Size: 1 3/8-16 UN — Length: 260 mm (10.24 inch) — Gasket OD: 110 mm (4.33 inch) — Gasket ID: 98 mm (3.86 inch). Additionally, its filtration performance is rigorously tested: Efficiency 50%: 9 micron — Efficiency 99%: 22 micron — Efficiency Test Standard: SAE J1858. Furthermore, it uses cellulose media, boasts a collapse burst strength of 10.3 bar (149 psi), and operates as a bypass-style spin-on filter.
Compatibility & Replacement Part Numbers
Notably, the following compatibility table lists verified brands, models, and replacement part numbers for the P550777 filter. Additionally, we have organized entries alphabetically to simplify your search process, and each entry is cross-checked against OEM specifications for accuracy.
Group D (DAF to DRESSER)
First, Group D covers heavy-duty machinery brands with direct replacement options:
- DAF: Compatible with all listed models, Replacement Part Number C3313283
- DEMAG: Specifically fits H 95 models, Replacement Part Number 692306
- DETROIT: Works with 60 SERIES engines, no direct replacement part number listed
- DETROIT DIESEL: Universal fit, Replacement Part Number 25011188
- DMT CORPORATION: Compatible with standard systems, Replacement Part Number 531106
- DOOSAN DAEWOO: Fits MEGA 300 V, MEGA 400 V, SOLAR 330 V LC, no direct replacement part number listed
- DRESSER: Matches 555 models, Replacement Part Number 1212621H1
Group E (EIMCO to EXXEL PTY LTD) Donaldson P550777
Furthermore, Group E includes construction and industrial machinery brands:
- EIMCO: Compatible with standard systems, Replacement Part Number 69008933
- ERF (E.R.F.): Universal fit, Replacement Part Number 1356344
- EUCLID: Specifically fits R 170, R 35-301 T, DR 35-324 T, DR 50-301 L, DR 50-324 L, DR 60, R 65, R 90 models, Replacement Part Number 119962280
- EXMAN: Works with listed equipment, Replacement Part Number SFO4777
- EXXEL PTY LTD: Compatible with standard systems, Replacement Part Number 14640033