
Part Name: Bushing 7d8889
Part Number: 7d8889
Basic Info.
art no. | 7d8889 | Material | steel |
Type | Bushing | Part Type | Engineering machinery parts |
Compatibility | Caterpillar | Transport Package | Wooden box |
Trademark | DIRON | Origin | Luoyang City |
HS Code | 84099991 | Production Capacity | 5000PCS/Year |
Product Details
- Date First Listed:2025/05/25
- Manufacturer:Diron Parts
Product Description
- Part Type:Bushing
- Description: suitable for Caterpillar



Product Introduction: Sleeve Bearing (Bushing) 7D8889 for Caterpillar Equipment
Overview
The Sleeve Bearing (Bushing) 7D8889 is a precision-engineered component designed for Caterpillar equipment, specifically used to support rotational movement and reduce friction in linkage and hydraulic systems, such as steering or blade lift assemblies. This bearing, made from a polymer composite material, is critical for ensuring smooth operation and durability in demanding applications, primarily motor graders. Available as a new aftermarket or genuine OEM part, it provides a reliable and cost-effective solution for equipment maintenance.
Key Features
- Material: Constructed from high-grade polymer composite, designed to withstand high loads, resist wear, and perform reliably in harsh conditions. Offers enhanced corrosion resistance compared to steel and compatibility with lubrication for reduced friction.
- Design: Precision-machined cylindrical sleeve bearing, engineered to match OEM specifications for precise fitment and performance. Features no internal or external grooves or cross holes, ensuring a robust design optimized for high-stress environments like motor grader linkage systems.
- Compatibility: Compatible with Caterpillar equipment, specifically:
- Motor Graders: 120H, 120H ES, 120H NA, 120K, 120K 2, 120M, 120M 2, 12G, 12H, 12H ES, 12H NA, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 130G, 135H, 135H NA, 140G, 140H, 140H ES, 140H NA, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 143H, 160G, 160H, 160H ES, 160H NA, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD, 163H, 163H NA. Typically used in steering or blade lift linkage assemblies to support rotating components. Exact model compatibility must be verified using the equipment’s serial number via CAT SIS, as compatibility cannot be confirmed without it per Caterpillar’s policy.
- Dimensions: Inside diameter: 76 mm; outside diameter: 89 mm; overall length: 83 mm.
- Quality Assurance: Manufactured to meet or exceed US OEM specifications, with quality control conducted in ISO 9001-certified facilities. Backed by a 1-year unlimited mileage warranty with no core charge.
Benefits
- Enhanced Durability: Polymer composite material provides excellent wear and corrosion resistance, extending service life in rugged road construction and grading environments.
- Reliable Performance: Reduces friction and wear, enabling smooth operation in linkage systems, enhancing machine efficiency, and minimizing maintenance needs.
- Cost-Effective: Offers a high-quality aftermarket or OEM alternative, reducing maintenance costs compared to replacing entire assemblies. No core charge required.
- Ease of Installation: Engineered as a direct-fit replacement, streamlining the repair process and minimizing downtime.
Applications
The Sleeve Bearing (Bushing) 7D8889 is designed for use in Caterpillar equipment, specifically suited for:
- Motor Graders: 120H, 140H, 160H, in steering or blade lift linkage assemblies for grading and road maintenance tasks.
- Industries: Road construction, infrastructure development, and earthmoving, where Caterpillar motor graders are employed for grading and surface preparation.
Technical Specifications
Weight: Approximately 0.6 lbs (0.27 kg).
Part Number: 7D8889 (cross-referenced as 7D-8889, CA7D8889).
Unit of Measure: Each.
Condition: New aftermarket or genuine OEM.
Note: While this description provides general information, specific details such as size, weight and exact material may vary by manufacturer and specific application. To obtain the most accurate and up-to-date information, it is recommended to consult a qualified parts supplier such as DIRON PARTS.
FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3. What is your terms of delivery?
A: FOB
Q4. How about your delivery time?
A: Generally, it will take 20 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q5. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from
ABOUT DIRON
- Factory OF DIRON
Diron Parts Group Have Its Own Factory Ensure That We Offer Better Price For Customers. Besides, Diron Corporate With Some Reliable Principal Manufacturers, So Diron Also Supply Customer Other Quality Spare Parts.








- Team OF DIRON
With 18 years of manufacturing and exporting experience, Diron has a team of knowledgeable engineers, inspectors and technical workers, sales staff, after-sales personnel.


- Products OF DIRON
As a distributor, we supply parts covers for :Complete engines, Long block, Short block, Engine spare parts, Electricla products, Hydraulic products, Transmission products, Undercarridge products.Among them, Cylinder head, Cylinder block, Spacer-plate, Bushing & Pin are our best-selling products.







