Spark PlugCross Reference

CHAMPION 821-1

Compare interchangeable spark plugs for {brand} {part}. Check heat range, electrode gap, thread size, and reach before substituting — not all cross-referenced plugs perform the same in every engine.

86 matches found

← Back to search

Cross-reference results

⚠ Important: Before substituting, confirm: same heat range, matching electrode gap, correct thread reach, and compatible resistor type.

ACCEL

1 matches

156236 total matches

ACDELCO

3 matches

M40FFX96 total matches M41FF44 total matches S40F37 total matches

AUTOLITE

2 matches

4092229 total matches 263465 total matches

BECK ARNLEY

1 matches

176-500671 total matches

BERU

2 matches

14Z-3AU47 total matches Z3720 total matches

BOSCH

17 matches

W4AC199 total matches W3AC189 total matches W280T13S86 total matches 024125651263 total matches 024125651963 total matches W4AS44 total matches W4A140 total matches W4A240 total matches W3AS39 total matches 024225550535 total matches W4A33 total matches W4A523 total matches W275T122 total matches W250T119 total matches W280S1S14 total matches W340S1S7 total matches WO8AS7 total matches

BRISK

1 matches

N14C-19 total matches

CHAMP STK

1 matches

82121 total matches

CHAMPION

9 matches

L77JC4103 total matches 821S86 total matches L3G57 total matches L4G51 total matches L77JC43 total matches L77J41 total matches 82136 total matches L77J435 total matches 821M10 total matches

DENSO

9 matches

W27FS-U10242 total matches IWF27100 total matches W27FS-U88 total matches W31FS51 total matches W27FSR-U1047 total matches W27FS-GU40 total matches W31FS-GU34 total matches TR22-1033 total matches W27FC7 total matches

DENSO STK

3 matches

602835 total matches 605220 total matches 405216 total matches

EYQUEM

6 matches

R100033 total matches C8227 total matches 110025 total matches 091100721524 total matches RC8220 total matches 091100721718 total matches

GM OEM NR

2 matches

561357479 total matches 56134527 total matches

MTRCRFT PN

7 matches

AV091X-430 total matches AV901X-425 total matches AV701CU1019 total matches AV91X-413 total matches AE091X9 total matches AE901Racing8 total matches AE901Z4 total matches

MTRCRFT STK

1 matches

11613 total matches

NEWSTAR

1 matches

E12C4 total matches

NGK

14 matches

B8HVX195 total matches B9HVX114 total matches B9HS103 total matches B9HS-1089 total matches B8HV79 total matches B7HS-1077 total matches B9HV74 total matches B9HCS65 total matches 581061 total matches 362642 total matches 212938 total matches 272131 total matches B10H28 total matches B10HS26 total matches

NGK STK

3 matches

362634 total matches 581029 total matches 212924 total matches

SPLITFIRE

2 matches

SM264D46 total matches SF263D44 total matches

TORCH

1 matches

E7C-106 total matches

Factory Direct

Need CHAMPION 821-1 in bulk?

We supply OEM-quality spark plugs directly from ISO-certified factories. Save 30-50% on wholesale orders.

Request a quote

OEM quality

Fast ship

Why source with us?

✓Direct from manufacturer
✓Quality tested (ISO 9001)
✓Low MOQ (100 pcs)