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Denso VT16 5621 Spark Plug

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Denso VT16 5621 image
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Rating
4.2 / 5
Overall
Denso VT16
Brand Code
4.5 / 5
Materials
Platinum Iridium
Ground electrode Center electrode
3.5 / 5
Design
Standard Fine Wire
Ground type Center type
Specifications
1.1mm (.043") 16
Gap Heat range
⌀14mm 1.25mm
Thread diameter Thread pitch
17.5mm (.689") 16mm (5/8")
Reach Hex size
Tapered 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 (24)

Alternative spark plugs found in cross-reference docs provided by manufacturers
Iridium-Platinum
-
4.2 / 5
.050" 18mm, ⌀14x1.25 HR 5
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 4
Platinum
3.7 / 5
.049" 17.5mm, ⌀14x1.25 HR 12
Copper-Platinum
3.5 / 5
.063" 17.5mm, ⌀14x1.25 HR 9
Copper
3.5 / 5
.024" 17.5mm, ⌀14x1.25 HR 17
Copper-Platinum
3.3 / 5
.043" 17.5mm, ⌀14x1.25 HR 8
Copper-Platinum
3.3 / 5
.043" 17.5mm, ⌀14x1.25 HR 9
Copper-Platinum
3.3 / 5
.039" 17.5mm, ⌀14x1.25 HR 14
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper-Platinum
3.0 / 5
.043" 17.5mm, ⌀14x1.25 HR 8
Copper-Platinum
3.0 / 5
.059" 17.5mm, ⌀14x1.25 HR 9
Copper-Platinum
3.0 / 5
.043" 17.5mm, ⌀14x1.25 HR 9
Copper
2.9 / 5
.031" 17.5mm, ⌀14x1.5 HR 9
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 10
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 8
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.055" 18mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.059" 17.5mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.045" 17.5mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.045" 17.5mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.043" 18mm, ⌀14x1.25 HR 14
Copper
2.9 / 5
.045" 17.5mm, ⌀14x1.25 HR 14
Copper
2.9 / 5
.039" 17.5mm, ⌀14x1.25 HR 15

Deep reference (79)

A second level of cross-reference: if A=B and B=C, then A=C
Iridium
4.5 / 5
.050" 17.5mm, ⌀14x1.25 HR 7
Iridium
4.5 / 5
.043" 17.5mm, ⌀14x1.25 HR 6
Iridium
4.5 / 5
.050" 17.5mm, ⌀14x1.25 HR 7
Iridium
4.5 / 5
.043" 17.5mm, ⌀14x1.25 HR 9
Iridium-Platinum
-
4.2 / 5
.045" 18mm, ⌀14x1.25 HR 3
Iridium-Platinum
-
4.2 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Platinum
3.8 / 5
.043" 17.5mm, ⌀14x1.25 HR 14
Platinum
3.8 / 5
.043" 18mm, ⌀14x1.25 HR 5
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper-Iridium
3.8 / 5
.039" 18mm, ⌀14x1.25 HR 5
Platinum
3.5 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Copper
3.5 / 5
.024" 17.5mm, ⌀14x1.25 HR 17
Copper-Platinum
3.5 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper-Platinum
3.5 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper
3.5 / 5
.024" 17.5mm, ⌀14x1.25 HR 17
Copper-Platinum
3.3 / 5
.043" 17.5mm, ⌀14x1.25 HR 9
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 20
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 20
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 17.5mm, ⌀14x1.25 HR 20
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.059" 18mm, ⌀14x1.25 HR 20
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.031" 18mm, ⌀14x1.25 HR 16
Copper
3.3 / 5
.043" 18mm, ⌀14x1.25 HR 16
Copper-Platinum
3.2 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Copper-Platinum
3.2 / 5
.059" 17.5mm, ⌀14x1.25 HR 3
Copper-Platinum
3.2 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper-Platinum
3.2 / 5
.045" 18mm, ⌀14x1.25 HR 1
Copper-Platinum
3.2 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper-Platinum
3.2 / 5
.059" 17.5mm, ⌀14x1.25 HR 3
Copper-Platinum
3.2 / 5
.045" 18mm, ⌀14x1.25 HR 2
Copper-Platinum
3.2 / 5
.055" 18mm, ⌀14x1.25 HR 1
Copper-Platinum
3.2 / 5
.055" 18mm, ⌀14x1.25 HR 2
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper
3.1 / 5
.059" 18mm, ⌀14x1.25 HR 5
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 5
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper
3.1 / 5
.039" 18mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 10
Copper
2.9 / 5
.039" 17.5mm, ⌀14x1.25 HR 15
Copper
2.9 / 5
.039" 17.5mm, ⌀14x1.25 HR 12
Copper
2.9 / 5
.039" 17.5mm, ⌀14x1.25 HR 15
Copper
2.9 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.045" 18mm, ⌀14x1.25 HR 3
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 10
Copper
2.9 / 5
.045" 17.5mm, ⌀14x1.25 HR 14
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 4
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 10
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 10
Copper
2.9 / 5
.059" 17.5mm, ⌀14x1.25 HR 9
Copper
2.9 / 5
.043" 17.5mm, ⌀14x1.25 HR 9
Copper
2.9 / 5
.059" 17.5mm, ⌀14x1.25 HR 9
Copper
2.9 / 5
.050" 18mm, ⌀14x1.25 HR 5
Copper
2.9 / 5
.055" 18mm, ⌀14x1.25 HR 2
Copper
2.9 / 5
.050" 17.5mm, ⌀14x1.25 HR 2
Copper
2.9 / 5
.045" 18mm, ⌀14x1.25 HR 3

One step colder (1)

Colder spark plugs with same characteristics for moderately tuned engines (75–100 hp increase)
Iridium-Platinum
-
4.2 / 5
.043" 17.5mm, ⌀14x1.25 HR 20