Mercedes-Benz W447 W448 Differential Bearing Kit F-585304.01.SKL-AM F-585302.02.SKL-AM F-580353

Product Overview

The F-585304.01.SKL-AM / F-585302.02.SKL-AM / F-580353 kit is a rear differential bearing set for Mercedes-Benz W447/W448 vehicles, covering V-Class, Vito, and Metris vans. The kit contains four bearings across three part numbers: 1 × F-585302.02.SKL-AM (pinion head bearing), 1 × F-585304.01.SKL-AM (pinion tail bearing), and 2 × F-580353 (differential carrier side bearings). Full rebuild kits for this application also commonly include two side oil seals and a pinion seal. The bearings are produced from GCr15 chrome steel with nylon cages and are supplied open for lubrication by the differential gear oil.

Critical structural and dimensional clarification

The supplier form leaves Structure, Number of Rows, all dimensional fields, and the material/seal/cage fields blank. Catalogue data provides the following, which should be used to populate the listing:

• F-585302.02.SKL-AM: Double-row angular contact ball bearing, 45 × 95 × 36 mm, weight ≈1.076 kg. This is the pinion head bearing. The OE reference is 712 2292 10.

• F-585304.01.SKL-AM: Double-row angular contact ball bearing. The kit listing gives 44.45 × 95 × 30 mm for this part number in the kit context. However, independent catalogue entries for the base F-585304.01 show 34.925 × 77 × 25 mm (weight ≈0.60 kg), 35 × 77 × 24/27.5 mm (weight ≈0.55 kg), and 34.92 × 77 × 27.98 mm (weight ≈548 g). The 44.45 × 95 × 30 mm figure appears in suffix-specific kit listings and may reflect the .SKL-AM variant with a different internal envelope. The supplier must confirm which envelope applies to the actual stock before publication; the listing should not present a single dimension for F-585304.01 without this confirmation.

• F-580353: Angular contact ball bearing (some sources describe it as a non-standard tapered roller bearing), 54.88 × 100 × 20 mm, weight ≈0.50–0.53 kg, nylon cage. It is used in pairs as the differential carrier side bearings (2 pcs per kit).

The Structure field should read “Double-row angular contact ball bearings (F-585302.02.SKL-AM, F-585304.01.SKL-AM) + angular contact ball bearings (F-580353, ×2)”. The HS Code 8482102000 (ball bearings) is appropriate for the two angular contact ball bearing types, and the supplier form already uses this code.

Weight clarification

The supplier form lists 2.86 kg. A published kit reference for the F-585304.01.SKL-AM + F-585302.02.SKL-AM pair lists 1.89 kg/kit, and individual published weights are ≈1.076 kg (F-585302.02), ≈0.55–0.60 kg (F-585304.01), and ≈0.50–0.53 kg each (F-580353). The sum of 1 × F-585302.02 + 1 × F-585304.01 + 2 × F-580353 is approximately 2.60–2.80 kg, which is consistent with the 2.86 kg figure. This confirms that 2.86 kg is a combined kit weight (four bearings), not the weight of a single bearing. The listing should state this explicitly.

Key Specifications

Performance Features

• Complete rear differential rebuild set: The kit supplies four bearings across three part numbers for the W447/W448 rear differential, addressing the bearing wear that produces whine, howl, or vibration from the rear axle on V-Class, Vito, and Metris vans.

• Position-specific angular contact geometry: The F-585302.02.SKL-AM and F-585304.01.SKL-AM are double-row angular contact ball bearings that manage the combined radial and thrust loads from the hypoid pinion mesh at the pinion head and tail positions. The F-580353 bearings support the differential carrier at the side positions, where they resist the radial and thrust loads from the ring gear.

• Nylon cages: All bearings in the kit use nylon cages, providing low-friction ball guidance in the oil-lubricated differential environment.

• GCr15 chrome steel construction: Rings and balls are produced from through-hardened GCr15 chrome steel, providing rolling-contact fatigue resistance for differential service.

• Open, gear-oil-lubricated design: No integral seals; the bearings rely on the differential gear oil for lubrication and cooling, consistent with the wet-sump strategy of the rear axle assembly.

• Kit completeness: The 2 × F-580353 carrier-side bearings are included as a pair, which is the correct quantity for a differential rebuild.

Application

The kit is specified for the rear differential of Mercedes-Benz W447/W448 vehicles, including V-Class (W447), Vito (W447), and Metris (W447) vans. In service, the pinion bearings (F-585302.02.SKL-AM and F-585304.01.SKL-AM) support the pinion shaft under the combined loads of the hypoid mesh, while the F-580353 bearings support the differential carrier and manage the radial and thrust loads from the ring gear. Rear differential bearing failure typically presents as a whine, howl, or vibration that increases with road speed; rebuilding with a complete bearing kit is the recommended repair. Replacement requires differential disassembly and should follow Mercedes-Benz’s procedure for pinion bearing preload, carrier bearing preload, and backlash adjustment. Rebuild kits for this application frequently also include oil seals and a pinion seal; the listing should clarify whether these are included in the supplier’s kit.

Ordering & Logistics

• Stock: 64 pcs (kit sets)

• Minimum order: 1 pc (kit)

• FOB price: US$100 – US$200 per kit

• Payment: PayPal / Western Union / T/T (100% in advance)

• Delivery: 3–4 workdays after payment

• Shipping: DHL / FedEx / UPS / TNT

• Ports: Shanghai / Guangzhou

• Packing: Standard export packing

• Brand: As required (authorized brands only)

• Country of origin: China

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