Jeep Grand Cherokee And Mercedes-Benz GLS/GLE Front Differential Bearing Kit F-563575 F-566311 KLM503349/11

Product Overview

The F-563575 / F-566311 / KLM503349/11 kit is a front differential bearing set for Jeep Grand Cherokee and Mercedes-Benz GLE/GLS (W166 platform) applications. The kit combines three distinct bearing types: the F-563575 is a double-row angular contact ball bearing (36.512 × 81.275 × 27/33 mm, nylon cage, ≈1.20 kg) serving the pinion head position; the F-566311 is a double-row angular contact ball bearing (30.15 × 64.25 × 14.9 mm, ≈0.35 kg) at the pinion tail; and the KLM503349/11 is an inch-series tapered roller bearing cone-and-cup set (45.987 × 74.975 × 18 mm, ≈0.30 kg) at the carrier/side position. The kit addresses the bearing wear that produces whine, howl, or vibration from the front differential on these platforms.

Critical structural correction: three different bearing types, not a single uniform structure

The supplier form leaves Structure, Number of Rows, and all dimensional fields blank. Catalogue data confirms the three part numbers are fundamentally different bearing types and must not be described under a single structure heading:

• F-563575: Double-row angular contact ball bearing, nylon cage, open (no seals), 36.512 mm bore × 81.275 mm OD × 27/33 mm stepped width, weight ≈1.20 kg. This is a pinion-head bearing for BMW/Mercedes differentials, and catalogue entries confirm it is a double-row angular contact ball bearing suited to combined radial and thrust loading.

• F-566311: Angular contact ball bearing, 30.15 mm bore × 64.25 mm OD × 14.9 mm width, weight ≈0.35 kg. Related INA designation F-566311.02 lists 30.162 × 64.292 × 15 mm with a weight of ≈0.21–0.22 kg.

• KLM503349/11: Single-row tapered roller bearing (cone + cup), 45.987 mm bore × 74.975 mm OD × 18 mm width, weight ≈0.30 kg. FAG/Schaeffler catalogue data gives Cr ≈ 48.5 kN and C0r ≈ 67.0 kN; TIMKEN data lists limiting speeds of ≈ 4 800 r/min (grease) and 6 300 r/min (oil) with a weight of ≈0.305 kg.

The Structure field must be corrected to “Double-row angular contact ball bearings (F-563575, F-566311) + single-row tapered roller bearing (KLM503349/11)”, and Number of Rows should read “Double rows (F-563575); single row (F-566311, KLM503349/11)”. The HS Code correctly spans 8482102000 (ball bearings) and 8482500090 (tapered roller bearings), as the form indicates.

Weight clarification

The supplier form lists 1.7 kg. The sum of the individual catalogue weights (≈1.20 + ≈0.35 + ≈0.30 = ≈1.85 kg) is slightly above 1.7 kg, which suggests 1.7 kg is a net kit weight (bearings only) and that packaging or small accessories (seals, crush sleeve, O-rings) may add to the shipping weight. The listing should clarify that 1.7 kg is a reference kit weight and provide the individual bearing weights in the description.

Key Specifications

Performance Features

• Multi-type bearing kit matched to differential positions: The kit pairs a double-row angular contact ball bearing (F-563575) at the pinion head, an angular contact ball bearing (F-566311) at the pinion tail, and a tapered roller bearing set (KLM503349/11) at the carrier position, covering the distinct load, stiffness, and axial-positioning requirements within the front differential.

• Angular contact ball bearings for combined radial-thrust loading: The F-563575 and F-566311 manage the combined radial and axial loads generated by the hypoid gear mesh at the pinion positions, where precise axial positioning and low friction are critical. The F-563575 is specifically a double-row design that can support simultaneous radial loads and bidirectional axial loads.

• Tapered roller bearing for high radial capacity: The KLM503349/11 cone-and-cup set provides high radial load capacity (Cr ≈ 48.5 kN) and one-direction thrust support at the carrier/side position, where the differential carrier must resist gear separating forces under torque load.

• Nylon cage (F-563575) and steel cage (KLM503349/11): The nylon cage in the pinion-head bearing offers low-friction ball guidance, while the pressed steel cage in the tapered roller set maintains roller spacing under high load.

• Open, gear-oil-lubricated design: All bearings are supplied without integral seals, relying on the front differential’s gear oil for lubrication and cooling.

• C3 clearance and P0 precision: Greater-than-normal clearance accommodates differential setup interference fits, and standard precision is consistent with automotive differential service requirements.

Application

The kit is specified for the front differential of Jeep Grand Cherokee (WK2 and related platforms) and Mercedes-Benz GLE/GLS (W166 platform, including ML-Class). Catalogue references explicitly list the F-563575.SKL-C01-H92 as a front reducer bearing for Mercedes-Benz W166 and Jeep Cherokee (CHEROKEE), confirming fitment across both vehicle families. In service, the F-563575 and F-566311 support the pinion shaft under the combined loads of the hypoid mesh, while the KLM503349/11 tapered roller set supports the differential carrier and manages the radial and thrust loads from the ring gear. Front 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 the vehicle manufacturer’s procedure for pinion bearing preload, carrier bearing preload, and backlash adjustment. Rebuild kits for these applications frequently also include oil seals, spacers, and crush sleeves, and the listing should clarify whether these are included.

Ordering & Logistics

• Stock: 63 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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