Engine-set quantities
State the number of plugs per engine set and total sets; do not assume every Corolla request uses the same pack quantity.
Corolla ignition service · B2B sourcing
Toyota Corolla Spark Plugs
Source Corolla spark plugs in engine-specific sets or bulk cartons using OE, manufacturer designation and technical specification evidence.
Complete engine codeOE and maker referenceThread, reach and seatHeat range and electrode type
Generic category presentationThe image identifies the part family only; it is not exact Corolla or OE fitment proof.
Part and kit scope
Specify the exact spark plugs request
Similar buyer terminology can describe different component counts or technical specifications. Use a line-by-line scope so quotations remain comparable.
Electrode specification
Identify nickel, platinum, iridium or other requested construction using a confirmed reference, not appearance alone.
Thread, reach and seat
Diameter, pitch, reach and gasket/taper seat must match the cylinder head specification.
Heat range and gap
Use the confirmed engine application and manufacturer designation; do not substitute only because the plug threads into the head.
Public identification evidence
90919-01253
Spark plug
Public component reference90919-01253Related catalog designation: SC20HR11
Published scope
Public Corolla catalog evidence lists selected 2ZR-FE / ZRE142 and ZRE172 applications and identifies SC20HR11.
What it does not prove
The reference does not apply to every Corolla engine, hybrid combustion engine or market version.
Toyota names and component references are used for identification. CorollaParts.com makes no Toyota authorization or genuine-parts supply claim.
Selection record
What must be confirmed before quotation
| Decision point | Buyer evidence | Risk controlled |
|---|---|---|
| Engine application | Complete engine code and production date | Controls heat range, reach, electrode and ignition-system requirements |
| Reference pair | OE number plus manufacturer designation when available | Reduces errors caused by incomplete cross-reference lists |
| Physical specification | Thread diameter/pitch, reach, seat type and hex | Prevents a physically incompatible plug |
| Operating specification | Heat range, electrode design, resistor type and specified gap | Prevents a plug that installs but operates incorrectly |
| Packing basis | Pieces per box, engine sets, master-carton quantity and labeling | Defines the actual wholesale quotation |
Part-specific risk
A plug that threads in is not automatically the correct plug
Incorrect reach can contact internal components or leave threads exposed; the wrong heat range, electrode projection or gap can also affect combustion and service life. Confirm the engine and full reference before approving a cross number.
Wholesale request options
Build a quote-ready order line
Availability, replacement grade, component scope, minimum quantity and packing remain subject to written quotation.
Engine-set spark plug orders
State the reference, specification and required quantity so this option can be reviewed separately.
Bulk piece and carton quantities
State the reference, specification and required quantity so this option can be reviewed separately.
Specified electrode grades
State the reference, specification and required quantity so this option can be reviewed separately.
Neutral or buyer-label packing after confirmation
State the reference, specification and required quantity so this option can be reviewed separately.
Related Corolla engine pages
Continue through the engine-parts structure
Ignition Coils
Source Corolla ignition coils as individual replacement lines or engine-set quantities using engine, reference, connector and physical-profile evidence.
View detailed page →Timing Chain Kit
Define the chain, tensioner, guides, sprockets and sealing scope.
View detailed page →Cylinder Head Gasket
Source Corolla cylinder head gaskets and defined upper-engine gasket sets by engine code, gasket construction, reference evidence and repair scope.
View detailed page →Buyer FAQ
Corolla spark plugs questions
Does one spark plug fit every Corolla 1.8L engine?
No. Engines and revisions can require different reach, heat range, electrode or ignition specifications even when displacement is the same.
What does SC20HR11 mean on this page?
It is a manufacturer designation shown with the public Toyota 90919-01253 catalog example. It remains application-specific and must be confirmed against the engine.
Can plugs be packed as four-piece engine sets?
Packing by engine set can be discussed, but the number of plugs per set, inner-box quantity, master carton and labeling must be agreed in the quotation.
Should the installation gap be changed?
Use the confirmed engine and plug manufacturer service specification. This sourcing page does not provide installation or adjustment instructions.
Corolla parts RFQ
Send the part evidence.
Include the generation or year, engine or hybrid version, OE/reference numbers, quantities, destination and packing request. Attach a spreadsheet or old-part photos when useful.
Email
sales@popxa.com
sales@popxa.com
WhatsApp / WeChat
+86 188 3743 1505
+86 188 3743 1505
- Application and reference evidence reviewed before quotation
- Product grade, included scope and packing stated in writing
- Freight basis discussed from quantity and destination—not assumed online