NGK 58901 direct ignition coil boot for the 1997-2003 Ford F-150 V8 5.4L, the 2000-2010 F-150 V8 4.6L and other vehicles links the ignition coil to the spark plug. The NGK direct ignition coil boot is made of silicone and has an angled shape.
A cracked or worn boot can let spark escape before it reaches the plug, which can show up as a misfire or rough running. Before you replace the boot, rule out a worn spark plug or a weak coil, since either can also set off a misfire.
The vehicles it fits include the 1997-2003 Ford F-150 V8 5.4L, the 2000-2010 Ford F-150 V8 4.6L, the 2002-2005 Ford Explorer V8 4.6L and the 1999-2004 Ford Mustang V8 4.6L. This listing is one boot; each of those V8 engines takes eight, while the V10-6.8L engines it also fits take ten. If your vehicle is not named here, look it up by year and engine in the "Vehicles it fits" section.
Fit and size
Build and materials
One direct ignition coil boot with its stainless steel internal spring and any required ferrite resistor. The valve cover flange is not included.
Interchange: 50003-1 · 35-1105 · 35-7006 · 35-8324 · 671-0001 · 671-8110 · 36-2025 · CPB-FD001
50003 · SPB102A · SPB153 · 702418 · 727418 · 02500 · 2500 · 121001 · 128041 · SPP39 · SPP39E · SPP39L · SPP90
This part cross-references / interchanges with the following part numbers:
Does the NGK 58901 direct ignition coil boot fit a 1999-2004 Ford Mustang V8 4.6L?
Yes. NGK 58901 fits the 1999-2004 Ford Mustang V8 4.6L, which takes eight boots; this listing is one boot.
Does the NGK 58901 direct ignition coil boot include the internal spring?
Yes. NGK 58901 includes a stainless steel internal spring and any required ferrite resistors, but not the valve cover flange.
Is this direct ignition coil boot straight or angled?
It is angled. This boot is made of silicone and sold as a single boot.
Should I change the direct ignition coil boots when I change spark plugs?
Yes. Doing both at the same time helps prevent ignition problems such as flashover.
Is NGK 58901 the same boot as CPB-FD001?
Yes. CPB-FD001 is NGK's other number for this boot, so you may find it listed under either 58901 or CPB-FD001.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
