Air cleaner element (paper)
Verified- 17211-Z8B-901 — Honda HRX217K6 (VIN MAMA-1000001 through MAMA-9999999), VIN prefix MAMA
Marked (WIX FILTERS) on Honda's diagram.
Independently re-confirmed on the standalone GCV200LA G5BR engine's own Air Cleaner diagram (identical part number and description) at https://www.partstree.com/models/gcv200-la-g5br-gjava-honda-engine-made-in-usa-sn-gjava-1000001-gjava-9999999/air-cleaner-0/.
Source: Shank's Lawn Honda (authorized dealer) — Honda HRX217K6 VKA OEM parts — HRX217K6 VKA Air Cleaner: ELEMENT, AIR CLEANER (WIX FILTERS) — 17211-Z8B-901.
Flywheel key (special woodruff 25x18)
Verified- 13331-Z8B-900 — Honda HRX217K6 (VIN MAMA-1000001 through MAMA-9999999), VIN prefix MAMA
Torque the flywheel nut to the manual's figure after fitting.
Independently re-confirmed on the standalone GCV200LA G5BR engine's own Flywheel diagram (identical number/description). Note the flywheel itself differs between the mower-anchored and engine-anchored diagrams (31110-Z9V-801 vs 31110-Z9L-801) - not reported here since flywheel (as opposed to flywheel key) was out of scope - but the woodruff key matched exactly on both.
Source: Shank's Lawn Honda (authorized dealer) — Honda HRX217K6 VKA OEM parts — HRX217K6 VKA Flywheel: KEY, SPECIAL WOODRUFF (25X18) — 13331-Z8B-900.
Ignition coil assembly
Verified- 30500-Z9L-004 — Honda HRX217K6 (VIN MAMA-1000001 through MAMA-9999999), VIN prefix MAMA
Set the air gap to the figure in your engine manual after fitting.
Independently re-confirmed on the standalone GCV200LA G5BR engine's own Flywheel diagram (identical number/description). A WebSearch of third-party OEM resellers (Amazon, eBay, PowerToolReplacementParts, Powered By Moyer) independently cross-lists 30500-Z9L-004 as fitting HRX217K6 HYA/HYAA/VKA/VKAA and GCV200LA G5B/G5BR/S3C/S3L by name (not just GCV170/HRN216). An older/alternate coil number also appears on both diagrams, but the two fetches disagreed on its trailing digits (30500-Z9V-003 vs 30500-Z9V-004) so it was deliberately not shipped - a human should view the diagram directly to settle the exact digits.
Source: Shank's Lawn Honda (authorized dealer) — Honda HRX217K6 VKA OEM parts — HRX217K6 VKA Flywheel: COIL ASSY., IGNITION — 30500-Z9L-004.
Spark plug NGK BPR5ES
Verified- 98079-55846 — Honda HRX217K6 (all variants, VIN MAMA-1000001 through MAMA-9999999), VIN prefix MAMA
NGK BPR5ES. Only the K6 generation (MAMA VINs) is covered here — an HRX217 with a MAGA VIN is a different generation and is not in the catalog yet.
Independently re-confirmed on the standalone Honda GCV200LA G5BR engine's own Cylinder Head diagram (GJAVA-1000001-9999999 serial range, a separate Honda catalog tree from the mower-anchored one). GCV200 is confirmed as the engine fitted to HRX217K6VKA/HYA mowers via Honda's own product pages and multiple dealer listings (201cc, vs GCV170's 166cc), so this is an independent GCV200-specific citation, not an assumption carried over from GCV170/HRN216, even though the number happens to match.
Source: Shank's Lawn Honda (authorized dealer) — Honda HRX217K6 VKA OEM parts — HRX217K6 VKA Cylinder Head: SPARK PLUG (BPR5ES) (NGK) — 98079-55846.
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