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Description
05901812 – Ariens / Gravely Hex Bolt (BLT, HEX 3/8"-16 × 2.50, Grade 5, ZCC)
The Ariens / Gravely 05901812 is a genuine OEM 3/8"-16 hex head bolt used throughout Ariens® and Gravely® equipment where a longer 2.50-inch fastener is required for secure clamping in high-vibration assemblies—most commonly in idler / sheave (pulley) systems, belt drive hardware, shields/bumper/back-wrap mounts, and control assemblies.
Key Details
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Part Number: 05901812
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Brand: Ariens / Gravely (Genuine OEM)
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Part Type: Hex Head Bolt
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Thread Size: 3/8"-16 UNC
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Length: 2.50 in
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Strength Grade: Grade 5
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Finish / Coating: ZCC (zinc corrosion-controlled coating)
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Common Use Areas: Idlers & sheaves (pulleys), belt-drive hardware, shields/guards, frame/bumper/back-wrap mounting, control linkages
Where Used (high level)
This bolt shows up in multiple platforms and sections, including:
Zero-Turn Mowers – Idlers / Sheaves / Belt Drive
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Edge 34 / 42 / 52 – Idlers and Sheaves (deck drive / pulley hardware)
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Zenith 52 / 60 (CE + non-CE) – Idlers and Sheaves
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Apex 48 / 52 / 60 (including CE & Limited variants) – Idlers and Sheaves
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Mammoth 850 / Mammoth 850 CE – PTO and Drive
Zero-Turn Frames / Guards / Shields
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Ikon 42 / 48 / 52 / 60 – Bumpers, Shields and Back Wrap (multiple serial ranges)
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Ikon Onyx / Select / CARB variants – Bumpers, Shields and Back Wrap
Snow Products – Controls
Used in several snowblower control assemblies, including:
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Platinum SHO 24 EFI / EFI CE – Controls
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Pro 28 EFI Hydro / RapidTrak / RT EFI / CE versions – Controls
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Pro 32 Hydro EFI – Controls
Other
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Edge 42 CE – Idlers and Sheaves
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Zoom 42 CE – Transaxle, dump valves and rear wheels
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Apex CE 48 / Apex CE 52 – Rear tires and transaxles sections (mounting hardware)
SEO-friendly short description (for your website)
05901812 Ariens / Gravely Hex Bolt – Genuine OEM 3/8"-16 × 2.50" Grade 5 hex head bolt with ZCC corrosion-resistant finish, commonly used in idler pulley / sheave assemblies, belt drive systems, guards/shields, and control mounting hardware on Ariens and Gravely mowers and snow equipment.
If you want, paste the next part number and I’ll keep formatting them the same way (part number first, clean SEO text, then “where used” summary).
