Champion L86C Spark Plug

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Rating
Brand	Code
2.9 / 5 Overall
Champion	L86C
3.0 / 5 Materials
Copper	Copper
Ground electrode	Center electrode
2.8 / 5 Design
Standard	Standard
Ground type	Center type

Specifications
Gap	Heat range
0.5mm (.020")	86
⌀14mm	1.25mm
Thread diameter	Thread pitch
12.7mm (1/2")	21mm (13/16")
Reach	Hex size
Gasket	Removable Nut
Seat	Terminal
1	Non-Projected
Ground count	Projection

Cross-reference and alternatives

How we find alternative spark plugs How we rate spark plugs

Cross-reference (3)

Alternative spark plugs found in cross-reference docs provided by manufacturers

W16FS-U

Copper

3.3/ 5

.028"12.7mm, ⌀14x1.25HR 16

425

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 6

B6HS

Copper

2.9/ 5

.028"12.7mm, ⌀14x1.25HR 6

Deep reference (20)

A second level of cross-reference: if A=B and B=C, then A=C

XS4093

Iridium-Platinum

4.2/ 5

.031"12.7mm, ⌀14x1.25HR 4

W14FR-U

Copper

3.3/ 5

.028"12.7mm, ⌀14x1.25HR 14

W14F-U

Copper

3.3/ 5

.028"12.7mm, ⌀14x1.25HR 14

W20FS-U

Copper

3.3/ 5

.028"12.7mm, ⌀14x1.25HR 20

B5HS

Copper

2.9/ 5

.035"12.7mm, ⌀14x1.25HR 5

L90C

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 90

WR8AC+

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 8

W10AC

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 10

WR8AC

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 8

5933

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 86

L90C

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 90

BR4HS

Copper

2.9/ 5

.028"12.7mm, ⌀14x1.25HR 4

BR5HS

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 5

W16FSR

Copper

2.9/ 5

.028"12.7mm, ⌀14x1.25HR 16

414

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 5

W7AC

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 7

306C

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 86

L82C

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 82

WR7AC+

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 7

4093

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 4

Same specs (2)

Products that have identical characteristics that impact interchangability

306C

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 86

L90C

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 90

Bigger gap (31)

0.1..0.3 mm gap increase for better performance given your ignition system can handle it

XS4093DP

Iridium-Platinum

4.2/ 5

.031"12.7mm, ⌀14x1.25HR 4

XS4093

Iridium-Platinum

4.2/ 5

.031"12.7mm, ⌀14x1.25HR 4

XS4092DP

Iridium-Platinum

4.2/ 5

.031"12.7mm, ⌀14x1.25HR 2

XS4092

Iridium-Platinum

4.2/ 5

.031"12.7mm, ⌀14x1.25HR 2

QL77PP MARINE

Platinum

3.6/ 5

.024"12.7mm, ⌀14x1.25HR 77

RL82C

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 82

QL78C MARINE

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 78

QL78C

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 78

QL86C

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 86

QL86C MARINE

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 86

L82C MARINE

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 82

883-1

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 78

874-1

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 82

RL82C MARINE

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 82

L82C

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 82

RL86C

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 86

UL81C

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 81

L78C

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 78

835C

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 81

811-1

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 82

4092

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 2

L78C MARINE

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 78

807-1

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 78

5933

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 86

5883

Copper

2.9/ 5

.030"12.7mm, ⌀14x1.25HR 78

422

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 3

414

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 5

411

Copper

2.9/ 5

.024"12.7mm, ⌀14x1.25HR 1

4093DP

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 4

4093

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 4

4092DP

Copper

2.9/ 5

.031"12.7mm, ⌀14x1.25HR 2

Two steps colder (1)

Two steps colder spark plugs with same characteristics for heavily modified engines (150-200 hp increase)

W10AC

Copper

2.9/ 5

.020"12.7mm, ⌀14x1.25HR 10