13 Ignition parts are listed for the 1973 MG MGB, in 7 part types, covering both the 1.8L L4 and the 3.5L V8. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 1973 MG MGB, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules. 9 parts of the 13 listed are Ignition Coil (5 parts), Condenser / Capacitor (2 parts) and Ignition Breaker Points (2 parts). The other 4 part types cover the remaining 4 parts.
The 1973 MG MGB was sold with both the 1.8L L4 and the 3.5L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 1973 MG MGB ignition parts are STANDARD MOTOR PRODUCTS (7 parts), FACET (1 part) and FVP (1 part), plus 4 more brands. Quality grades include Economy and Standard Replacement.
1 part on this 1973 MG MGB page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — STANDARD MOTOR PRODUCTS UC15T (Ignition Coil). Click any part number to see every vehicle that part fits.
Condenser / Capacitor
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | LU206T | 🇺🇸 US | T-Series | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | LU206 | 🇺🇸 US | View on Amazon |
This table covers the capacitors used in this electrical or A/C circuit.
STANDARD MOTOR PRODUCTS supplies both parts for the 1973 MG MGB.
In the Economy grade, STANDARD MOTOR PRODUCTS supplies 1 part: the catalog's value-priced group. A representative part number is STANDARD MOTOR PRODUCTS LU206T.
The Standard Replacement section lists 1 option from STANDARD MOTOR PRODUCTS — built to original-equipment specification. STANDARD MOTOR PRODUCTS LU206 is listed in this group.
Part numbers include STANDARD MOTOR PRODUCTS LU206T and STANDARD MOTOR PRODUCTS LU206.
Distributor Cap
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | LU429 | 🇺🇸 US | View on Amazon |
This table covers the Distributor caps. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable.
This group shows a single part: STANDARD MOTOR PRODUCTS LU429.
Distributor Rotor
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | LU300 | 🇺🇸 US | View on Amazon |
This table covers the Distributor rotors. Typical signs include shudder under braking, or a lip at the outer edge. Do not put new pads on a rotor that is below minimum thickness.
This group shows a single part: STANDARD MOTOR PRODUCTS LU300.
Ignition Breaker Points
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Fits: 3.5L V8 | 14683MHDV | 🇺🇸 US | View on Amazon | |
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | LU1617P | 🇺🇸 US | View on Amazon |
This table covers the breaker points in a points-type distributor.
2 Ignition Breaker Points parts are listed for the 1973 MG MGB, from FACET and STANDARD MOTOR PRODUCTS.
Part numbers include FACET 14683MHDV and STANDARD MOTOR PRODUCTS LU1617P.
Ignition Coil
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Popular Fits: 3.5L V8 | UC15T | 🇺🇸 US | T-Series | View on Amazon |
| FVP Fits: 3.5L V8 | UC15F | 🇺🇸 US | Alternate Replacement Part | View on Amazon |
| HOLSTEIN Fits: 3.5L V8 | 2IGC0058 | 🇺🇸 US | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: 3.5L V8 | UC15 | 🇺🇸 US | View on Amazon | |
| UNITED MOTOR PRODUCTS Fits: 3.5L V8 | C15 | 🇺🇸 US | View on Amazon |
This table covers the coils that fire each spark plug. Typical signs include a misfire that follows one cylinder, a snap in damp weather, or a coil that is swollen or cracked. Swap a suspect coil with a neighbor to confirm, then replace boots that tore on the way off.
5 Ignition Coil parts are listed for the 1973 MG MGB, from STANDARD MOTOR PRODUCTS, FVP, HOLSTEIN and 1 other brand. STANDARD MOTOR PRODUCTS UC15T carries the "Popular" badge.
Economy: 3 parts, from STANDARD MOTOR PRODUCTS, FVP and HOLSTEIN. A representative part number is STANDARD MOTOR PRODUCTS UC15T.
The Standard Replacement section: 2 options from STANDARD MOTOR PRODUCTS and UNITED MOTOR PRODUCTS. STANDARD MOTOR PRODUCTS UC15 is listed in this group.
Listed part numbers: STANDARD MOTOR PRODUCTS UC15T, FVP UC15F and HOLSTEIN 2IGC0058, plus the other parts above.
Ignition Lock Cylinder
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ÜRO PARTS Fits: 3.5L V8 | BHM7144 | 🇺🇸 US | View on Amazon |
This table covers the lock cylinders in the ignition switch.
One part is listed for the 1973 MG MGB — ÜRO PARTS BHM7144.
Spark Plug
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| CHAMPION Fits: 3.5L V8 | 806 | 🇺🇸 US | Copper PlusPre-Set Gap: 0.03" | View on Amazon |
This table covers the spark plugs for this engine. Typical signs include misfire under load, rough idle, or a flashing check-engine light. Verify the gap even on pre-gapped plugs, and replace coil boots that come off a high-mileage engine.
This group shows a single part: CHAMPION 806.
Buying Ignition Parts for a 1973 MG MGB
On this vehicle, the ignition system delivers spark at the right moment — plugs, coils, wires, distributors and ignition modules.
- Match the engine first. Every ignition part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Ignition Coil and Condenser / Capacitor .
Frequently Asked Questions
How many ignition parts fit the 1973 MG MGB?
Our catalog currently lists 13 ignition parts for the 1973 MG MGB across 7 subcategories and 7 brands, covering both the 1.8L L4 and the 3.5L V8. Each part is matched to the engine(s) it fits.
Do ignition parts differ between 1973 MG MGB engines?
Yes. Every ignition part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of ignition problems on a 1973 MG MGB?
Common symptoms include misfires under load, rough idle, flashing check-engine light, or poor starting in damp weather. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What spark-plug gap is listed for the 1973 MG MGB?
Notes on this page include pre-set gaps of 0.025" and 0.03". Still verify against spec — even “pre-gapped” plugs should be checked before they go in.
What should I replace at the same time?
Where labor overlaps, replace plugs and wires (or coil boots) as a set — one weak cylinder makes the whole set feel bad.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1973 MG MGB was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1973 MG MGB?
First match the engine — each row shows which engine(s) the part fits. Then gap matters even on “pre-gapped” plugs — verify against spec, and replace coil boots when they come off a high-mileage engine. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1973 MG MGB
Ignition Parts for Other MG MGB Years
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